A little from Column A, a little from Column B~ So many people saying Hey and following up with nothing, saying Hey with a blank profile and providing no info and presumably actually expecting a response to grace their lazy asses, people saying Hey followed by inappropriate pictures or info (which still happens with surprising frequency even when I explicitly state I'm only looking for something casual), the people who say Hey in response to me asking and then subsequently providing nothing...
Annnnnddd disregarding all of the above, half of the guys who DO avoid all above pitfalls turn out to be sociopaths. In a just world, I'd respond to all the Heys with nothing else, but usually it foretells a waste of time from my perspective based on my experiences.
Tinder has issues too, but I've had infinitely better experiences with it, especially compared to Grindr. More people on Tinder seem to actually comprehend the basics of human interaction on a basic fundamental level, and know how to not come across as some neurotic foolish idiot.
... Yes, I'm a little bitter~
I've had far worse experiences on Tinder and it's like somehow the worst of the worst show up there. At least with Grindr I kinda know what I'm getting into. Tinder in my area attracts some really aggressive weirdos.