I am not aware of Reddit experimenting with blocking mobile browsers. However, it's important to note that information and developments can change over time.

To get the most accurate and up-to-date information about Reddit's policies or any potential changes related to blocking mobile browsers, I recommend checking official Reddit announcements, news articles, or Reddit community discussions that might provide insights into any recent developments. Additionally, you can visit Reddit's official website or their support pages for any official statements regarding this matter.

Wow. I usually only used Reddit for one community, and so I’d usually just log in through my mobile browser. It also makes a lot of the information that’s harder to find through the sea of ads on Google less accessible.

I'd suggest them to disable inbox and chat in their app. They should make an additional app like Facebook has, they can call it Reddit Messenger.