It is weird when you first start out. I remember it well. Does take a while to get used to having sex with strangers who you wouldn't look twice at in the street. We're not programmed to screw guys we're not attracted to are we.
I still have flinching sessions afterwards sometimes, especially if I see a guy in the street when I'm not working, & I think he may call me when I'm back at work.
The creepy ones, I find, will generally let something slip before they arrive. If they don't & do something offensive when they arrive then just tell them to leave. With the smelly, if they turn up & refuse to wash then ask them to leave. Obese guys will sometimes say on the phone "I'm a larger guy". I find the overweight guys are really respectful & quite shy types who are easily pleased. Don't recall having a bad one.The smelly ones I'll avoid, just wont see again. Sometimes they come out of the shower & still smell. Pheromones or something. Get some Badger balm for under your nose.

You can put whatever you like on your adverts. I've read some women wanting a photo before they'll see someone. (Hopefully they'll not send not send a dick pic

)
I put watsapp on my work phone to see what guys look like.