There is a federated instance that seems to be doing 1:1 post copies from Reddit. Not only are the questions copied, all the users are bots and entire comment chains are copied. This is not entirely a bad thing in some edge cases.
However, reposting questions in fake(?) tech support communities with fake comments is annoying as hell and a waste of time for people who really want to give genuine advice. alien.top is one of those weird instances, for example.
I can easily block the instance on my client, so there is that. If this is actually an issue, it should be blocked, defederated, whatever, at the lemmy.ca instance level.
In fairness, I don’t have a full grasp of the details of how federation actually works, and personally, I don’t really care at the moment. (I’ll dig into it later as time permits.) Heck, for all I know, there could be a legitimate connector built to facilitate easier transition for users that are migrating from Reddit to Lemmy. (Is that even a thing?)
Cheers. Sorry if I sound stupid. This was just bothering me a bit.
The point of federation is to not have a single central point that controls instances. Instances are automatically federated with all other instances, generally. Its up to a given instance owner to decide to defederate from another instance. And thats the “nuclear option”. Ive only seen it done when the instance is posting hatespeech/CSAM/etc.
You can request it to the admins whatever your home instance is but I doubt anything would happen.
Block it in your client, like you have suggested.
A third option is to host your own instance, which will give you control over what other instances you federate with
One plausible argument for defederating bot instances is that generate a flood of posts, which is slightly hostile to new users. If a new user joins lemmy, finds a flood of bot posts, they may end up assuming the entire system is bots, and give up before even getting to installing a client and blocking them.
Definitely much more of a grey area compared to CSAM/hatespeech, but kinda the same line of thought: “if users see this content, they may be turned away”.
I’ve blocked almost all the Reddit reposter bots (BAPCsales is one exception). If we wanted to be friendlier to new users, ideally these sorts of feeds (game day, bot newswire, subreddit reposter) would be opt in to receive while hidden by default, but it sounds technically challenging to implement well.