It’s a lot better than it used to be. Around 2015 we had a couple of spammers from Pakistan who posted links to streaming sites. They seemed put more effort into it than a real job. Every day, day in and day out, they would post dozens of these. They had to come up with new usernames and emails for every one since we usually banned them almost immediately. This went on for several years.
One day one of them went nuts, maybe out of frustration, and posted more than 100 `spam messages. I was the only mod on duty when the attack began. I got something like 60 of them. This is an event that lives on as Spampocalypse.
They eventually went away. Maybe they got a real job, but I like to think they got hit by a bus.