I say don't try. One of the problems askreddit and other subs like showerthoughts had was that you had to follow an extremely restrictive set of posting guidelines to even have your post stay up.
I think we're better off just letting the community upvote/downvote to maintain quality, rather than trusting powermods.
There are things specific to the function, look and feel of the site that are easily blockable from becoming part of this one (NFT avatars, medals, user karma, etc); but I am seeing a high trend of responses here that are not platform specific, and will happen organically anyway as they have done across every type of social platform, including real fucking life. The problem many people seem to have isn't with Reddit. It's with other people.
Edit: Uh... I just noticed this is not the thread I thought it was. The question really is about user behavior, not the generic "what from reddit do you not want on Lemmy" one. 🤦♂️