I remember when a bully would have to go up to you themselves to mete out whatever harassment, and you could avoid a lot of it by just being aware and avoiding that particular person.

Juxtapose that with today, where any one bully can create dozens of accounts to bully in a swarm, and the bully has constant access to you from your own pocket. Also, a person in Minsk or Timbuktu or whatever couldn't just come up to your house in the middle of the night to harass you out of boredom.

This "we could do X before computers, why are we trying to ban X-with-computers now?" line of arguments is just intellectually lazy. If a bad behavior was well moderated in the past because it was labor or resource intensive, the sudden removal of those constraints is a material change that demands revisiting. Put another way, if a constraint stops working, we should change constraints, not just do the old constraint with a confused expression on our faces.