Reminds me a lot of Twitter where everyone posts on popular accounts asking for follows, offering to follow them back, and never doing so. Either that or they click follow to get your follow then unfollow you.
I guess it doesn't matter which platform you use, there will always be those who ask for but never give.
Yeah, I guess you will get it from every site. They are not bothering me to bad, so you eventually learn to live with it :)