lemmit.online is a controversial lemmy server since its sole purpose is to run a bot that mirrors reddit posts to lemmy. Previous discussion 3 years ago about
whether to block it: https://lemmy.ca/post/1380644
Currently it is blocked from lemmy.ca and I would like to unblock it to ease weaning off reddit gradually. If I can use lemmy.ca as my main site with links off to reddit on occassion I don't need to use reddit anymore to browse but just drop in for a specific post of interest.
The main complaint is it can fill up the all category with high volume
of low interaction posts. This can be dealt with on a per user basis by blocking either the lemmit.online instance or blocking the bot@lemmit.online user.
Looking at the top 10 lemmy instances on https://fedidb.com/software/lemmy here's who allows or blocks the lemmit.online instance:
lemmy.world ✅
lemmy.ml ✅
sh.itjust.works ✅
lemmy.dbzer0.com ✅
lemmy.ca ❌
programming.dev ✅
lemmy.zip ✅
lemmy.blahaj.zone ❓
ttrpg.network ✅
lemmy.one ✅
I've changed my mind a bit since Otter's comment suggests Lemmy has some admin-accessible features I didn't know about. I personally haven't needed Reddit for several years now, and the Old Reddit redirect plugin works fine for my needs the odd time I do want to peek at a thread. My own transition period from Reddit to Lemmy was about 3-4 months, so I understand the want to wean off gradually.
I think I can support LemmitOnline's re-federation on the condition that it will not show up on any lemmy.ca user's All or Local feeds, unless that user has subscribed to the lemmit.online community or the bot. It also shouldn't show by default for logged out users.
However, I still worry if it will bring overwhelming traffic, disk or other resource use for the lemmy.ca admins from re-enabling that federation. Something to consider.