. . . you're telling a bot to stop linking something. It automatically pulls top posts from Hackernews and rebroadcasts them here.
I get it that many Lemmy users came across during the blackout of reddit (myself included), but prefering Lemmy doesn't change the fact a lot of good discourse still happens on reddit. Not linking reddit self posts at this point would exclude a fair bit of content trending in the background on Hackernews, Linkedin, or any of the other large social platforms wihch all cross-post.
Nay.
Provided the moderators on sh.itjust.works feel capable of dealing with any outright hate speech or harassment from that community, I think most of us are big enough people we can deal with hearing differing view points. If someone has a big enough problem with a single user or community, there is always a user-side block as well. My only reservation would be if the degree of spam/harassment is over taxing our community moderators. I recall how many of us in sh.itjust.works were offended when Beehaw defederated us -- for the same sort of reasons (too much spam, too much harassment, the wrong kind of people, etc etc etc).