Dating app and guys that ghost. Should I block?

I’ve been using this dating app for a while. & while most guys know how to keep the conversation going there’s a few that are just questionable.

They ask me for my IG, my Snapchat & my number. We talk for a day or two, suddenly they disappear? They talk big game the first day or two we’re talking & then next day. No sign of them. Then we never talk again.

So now I have a bunch of guys following me on Snapchat & Instagram & that have my number but never hit me up & just watch my Snapchat stories or IG stories. I think this is some bullshit and I really want to block all the ones who essentially ghosted me but keep me on social media. What should I do? Am I being childish??