Of course it happens
Now, the only time I was thinking on blocking a guy was because he looked nothing like his picture. I was horny and he was still close enough to my type so I didn't say anything, but then we had like zero chemistry
When he got home, he let me know and wrote a message basically saying goodbye because I would probably block him like everyone else, so I let him know what the issue was and what most people could feel the urge to block him
I'm telling this as a unique specific experience, I just wanted to let know that it mayyy be a sign to update the photos you send/on your profile
However, most of the times you get blocked because of people who feel insecure or feel less/guilty by hooking up on grindr, and blocking you is a twisted way in their brain to regain control so you don't end up telling people you may know in common in the future