there is a difference between mindlessly trolling a group/community (spamming, DoS and DDoS, flashmobs, 14 year olds standing across some building on the street and looking "menacing", etc) and harassing and threatening one or more specific people (voice messages, stalking, doxing). we already have legislation about the latter, it's simply not enforced.
and there are no real conventions about what sites should do when a) one of their members is a target from the outside, b) harassers use their site as an accessory (eg. to communicate, organize, store photos/videos, advertise, recruit)
and obviously it's not a clear-cut issue. mandating sites to somehow filter out harmful messages is not trivial. at the same time it'd be great to provide a few independent clearinghouses for these, it'd be great if users could opt-in to have content aimed at them filtered, etc. (for example it'd be very useful for sites to have a setting for users to only allow receiving private messages from users with some minimal reputation, and so on)
and there are no real conventions about what sites should do when a) one of their members is a target from the outside, b) harassers use their site as an accessory (eg. to communicate, organize, store photos/videos, advertise, recruit)
and obviously it's not a clear-cut issue. mandating sites to somehow filter out harmful messages is not trivial. at the same time it'd be great to provide a few independent clearinghouses for these, it'd be great if users could opt-in to have content aimed at them filtered, etc. (for example it'd be very useful for sites to have a setting for users to only allow receiving private messages from users with some minimal reputation, and so on)