This thread focuses on bot and scam checks. I asked the same thing because it is hard to tell whether a platform is actually active or just full of empty promises.
A lot of these platforms look similar at first, but the details around messaging, moderation, and identity checks make a huge difference. If a site asks for a card before you can even test messaging, that is usually where I back out.
If the platform cannot prove it has active users, I would rather move on and compare it with the more obvious options.