I don’t think Tinder existed when I met my OH, or at least wasn’t as well known as it is now. I met mine on PoF. There were plenty of hilarious and downright awful people on there – I lost count of the number of penis/ pants photos I was sent in messages. Plenty of guys (and presumably girls) on there just after one thing but they’re easy enough to filter out.
I don’t see why a relationship that begins online should have any less chance of working than someone you meet in “real life”. My OH and I have been together 4.5 years and married for a year and a bit with a baby due in a few weeks, so it can work out. We’re very different but it works for us. In the past I’ve dated plenty of guys I met in RL who were v similar to me – we were participating in similar activities or social occasions, hence meeting in the first place, but it never worked. OH are almost polar opposites, have totally lots of different hobbies but also plenty of things we do enjoy doing together. It works for us.