That really depends. If you see a person following many people, but only had about 1/10 of the people or less following him/her back, then maybe he/she just adds people that he/she things are good looking. Following someone in gag is less creepier than sending someone a random, perverted messages and they always have an option to block you or not follow you back
I don't think so. I mean most of the people on here are fairly random. all it means to me is that they either hate or like your answers or questions. not creepy to me, I mean it's not like there is much they can do following you
Nope, it isn't creepy to get random followers. People do it all the time. Following someone just makes them easier to see their answers and stuff (or if their profile was private it will reveal it). I would't say it is creepy at all.