I don't really recommend using it, it has a lot of false positives. Also seems to be biased in a lot of their views. It also seems to miss a lot of stuff which is blatantly transphobic and I marked stuff while using it but it was never approved despite being blatantly not okay. So I really don't recommend it. If you do use it, take every rating with a grain of salt, or the whole salt shaker.

It once put my username in red while I was a moderator on a trans subreddit. That was an interesting time

Don't like it. I know a lot of people who got marked red because of some personal drama, or for things they used to believe but no longer do, and they keep getting accused of being transphobic with no other reason than being marked red on shinigami eyes. Plus I don't agree with the guidelines on what counts as transphobic, like it says afab transfem is a transphobic troll identity that should be marked red, but afab transfem and amab transmasc are actual identities used by intersex people who have a more complicated relationship with their asab

I think it works great and allows me to avoid engaging with problematic individuals and organizations.

I wish Lemmy and the third party apps had the feature.

Peertube could use it too!

I hope it gets expanded to Ebay, Etsy, Amazon, Steam, Play Store, App Store. That would really hurt those fake pink capitalists.

Too bad I use an iPhone I can’t use the extension as it only works on the gecko engine of Firefox. Android wins in this case.

I've used it for a long time, on desktop and mobile Firefox. Sometimes if, for instance, I find a person with a red name, like on reddit maybe, I might check through their post history and see some of the other things they've said, and I've often struggled to find anything related to their views on trans people, scrolling and scrolling through hundreds of comments and posts and never finding a thing. And other times it's immediately apparent. I imagine for a lot of just regular people on the internet, getting their name red can be as simple as sharing an ignorant opinion once, twice, a handful of times, but not appearing to actively espouse anti trans bigotry.

Since there is no, like, way to add a note to an account that is being marked, or to save a web address linking to the post or event or thing that made somebody flag them, there's never any way to be sure why an account is red or not unless you just happen to stumble upon the post that caused the flag, or if they frequently express their bigotry such that any of it would be easy to find.

Plus some people using the plugin might just not understand the rules, and mark people who just are trans as green, instead of people who do pro trans activism or strongly voice support for us, like the rules say. So, for red names, maybe someone has never shared an opinion on trans people but they just give off a "vibe" that makes a person mark them red. Or, one could even be a troll or anti trans person who downloaded the plugin to start flagging wrong on purpose just to screw with us, I don't think there's any protection against that scenario. So you just can't know for sure.

For my purposes, I'm always wary of red names/links as a rule, and generally more trusting of green names, but if the topic at hand isn't about trans people at all, I may overlook the colors entirely, though I tend to let that information guide my interactions with the marked. I have found, though, that whole websites, subreddits or notable internet personalities, like their twitters or YouTube accounts or something, which were marked one color or the other, tend to be more reliable than just a random individual's social media account. More eyes, more chance a person would see something sus and flag it again.

I would agree with the reviews that said they use it as a suggestion, it cannot be definitive with how it works, but that doesn't really take away from it I don't think, it's a good warning system for not wasting your time somewhere or with someone that doesn't respect trans people, as a trans person. Just sometimes you have to ask "why would this account be marked red/green?" and to consider that when doing your mental calculus about interacting with a certain person/site/etc or not.

Edit: fixed some words

Not using it, but AFAIK it uses a bloom-filter internally which is a datastructure that is known to come with unavoidable false positives. AKA: Even if the database was 100% free of errors and only contained actually transphobic people, the extension would still mark a lot of completely innocent accounts as transphobic, simply because the data-structure returns wrong results at times.

Based on that alone you should treat any and all results as “warrants a closer look” at most. With even that being a questionable use: People with dark skin are more commonly non-EU foreigners in Europe than white people, but every sane person agrees that the police checking dark skinned people more often is racial profiling, which is racist, should be illegal, and is just a bad thing to do. So taking a closer look at people because of something they cannot control that isn’t directly tied to them personally (skin-color or positive match in a bloom filter) is a questionable practice to begin with.

Lastly: What does it change? The validity of an argument is not affected by whether the person who made it is a transphobe or not.