There's a way to do it, and there's a way not to do it. If you're reposting something that directly solicits feedback and you don't know enough to be able to respond, that's no fun. If you're looking over reddit, carefully selecting interesting content, and hosting good conversation about it, that's very healthy. Given you're using words like "large scale" and "direct," I assume you mostly have the unhealthy kind in mind.

reddit bot spam is annoying

As you note elsewhere, these are often highly upvoted and honestly, the fediverse is so small that without those posts, I worry about how much content there would be. (We can cry that people need to post more original content until our lungs give out but...)

So, I'd say this is probably a fine tuning issue. We probably want people to choose if they want to filter out as much content from reddit as possible, bot content only, mass reddit posters etc.

Reposting linked content from, yes. To? No. If you still brave those wilds to find content currently lacking on fedi and post here to drive engagement. You're exactly the type of person the feddi needs. If you're posting links to external comment sections about said links. You aren't helping the feddi.

It's worst with mastodon where there are a ton of not reporters that might be mistaken for actual outlets.

I see it as follows:

There is a chance that if I post something from reddit / twitter / whatever, it gives room to talk about it to someone who would not otherwise have done it because those posts are there and not here (account blocked, deleted, shadowbanned, whatever).

So , to me, it largely depends on what is being reposted. Things like news, official service pages or software releases? Not really useful to mirror to the social networks, you could just link to the source (or a better one than nazi sites use). Cats? Beautiful! Linux? Absolutely! Antiworker life pro tips? Useful! Local stores that don't have their own webpage but an Instagram instead? Eh, but OTOH how else, unless one of us is volunteering to host them one. Arts and crafts? Nice to have, but with the understanding that the OP won't get to see our feedback; sometimes that's fine, sometimes we want to talk about a thing and not to the thing.

Nothing should be reposted from twitter, nazis are fertiliser, they serve no other purpose.

I think Lemmy is not at a scale sufficient enough to produce enough original content. I'm okay with tasteful reposting.

Well, it's pretty good to not have to go to Reddit to comment on a post. Similarly, I'm considering looking for a way to bridge some of the subreddits I made with their PieFed counterparts (or, preferrably, my instance counterparts when I make one) so that posts and comments from Reddit are automatically bridged over to fedi, and maybe vice versa as well.

https://lemmy.today/post/59276278

Nope. Everyone hates it.