Not just porn. My account with ~150 followers was, out of the blue and within a week, followed by a dozen different "startups". Every single one of them follows tens of thousands of people in the hopes of getting followed back. It's pathetic.

I'm not sure that's quite the same thing. That seems to be an example, at least somewhat, of using the platform as intended.

If your profile is public, and they decide to follow it, in part, to make you aware of their existence, perhaps that's a feature not a bug, given that the main use for the thing is to connect with accounts and follow them and discover content.

I see random accounts occasionally following me, and it's clear that they're just casting a very wide follow net to see who will follow back, presumably to get their readership up. To me, that's spam, no question about it. Even if it's targeted. (Targeted spam is still spam.)

I want people to follow me because they're interested in what I post, not because they're looking for me to follow them. Perhaps I'm asking too much of the platform, but... it is what it is.

I have had a Twitter account for I think close to a decade that I never use. I’ve never tweeted or followed anyone. Last time I logged in which was probably over 2 years ago, I had dozens of followers, all following nothing!

Yeah that’s probably accounts managed by some random shaddy tool that follows tons of people in the hope of getting follow-back then massively unfollow everyone.