Yes, I use it, and find it very useful.
I’ve seen recent spammers working together - one account posts a legitimate-looking query, and another one later responds with a promotional link.
It may be useful to bear in mind that it’s one business that’s creating accounts, and another business which will use them to post spam - either in posts, or in the profile. Don’t think of spammers as people, but (at best) as employees of a business. That is, the motivations are not personal, but business.