> This person receives a follow and a couple DMs
No, this person ignored a couple DMs and follows, then had to deal with the perpetrator contacting their friends and trying to goad them into meeting. Then after that failed, continued to try to follow the person on LinkedIn and other sites. That's called stalking and it's a real problem.
> from someone that used to undermine their self esteem.
You don't know that. The author didn't say what the problem was other than that the perpetrator was a bully. They could have been a rapist for all you know.
> Instead of saying anything, instead of just ignoring them,
They tried that and it didn't work! They gave a clear signal that this is not OK, and whatever the perpetrator wants to say, the author doesn't want to hear it. And yet, the perpetrator persisted in trying to find other ways to get the author to do something they didn't want to do.
> Talk about spiraling. Wow.
Yeah, this isn't spiraling. This is pointing out a real issue that some people have with boundaries, and the people around them ignoring it or being too afraid to tell them. Repeatedly contacting someone from your past who doesn't want to be contacted is not cool no matter why you want to contact them.
> Are a lot of people like this such that I should stop laughing and "validate" this behavior?
I mean, if you don't want a be a dick, don't laugh at other people's pain, even if you don't understand it. But you do you.