i think this is a solid idea but i also think that TH/WN/T&W aren't really like intuitive to guess at and so look intimidating at first glance :|a but i'm down with the concept of like, marking down like, indicators. probably for myself i'd just do like "threading OK" for the toplevel or sth and then like "watched this memory but not engaging" or sth.

on that note i also don't actually get how WN/witnessing would be something that the memory poster should be denoting in order to soothe the scariness...? like i can see the function for a memory poster to say "threading ONLY" or "threading/witnessing both OK" but then like, "just witnessing pls" makes it sound like there are just going to be toplevels with JUST memories without actually ANYONE engaging with it which is not bad as a concept but i don't think it really connects to "and then it'll make people feel less intimidated about engaging with memory mingles".

imo it's in the right direction though! probably you could even just cut it down to "witnesses OK" at the toplevel and then encourage people being able to just note, "hey i saw this thanks for the rares" and if we can take that and roll with it then memory mingles i think could be way less scary for everyone :U