No it doesn't bother me! I 爱情 the world ! When a 粉丝 posts on my 墙 an image about 爱情 或者 friendship, I like that. As they say..."Love makes the world go round"!
It depends. If they're your friend on here, then it's not wierd. I 爱情 my 老友记 (in a friend way) & I say it when I want to. But if they don't know you, & you've never spoken to them in your life, 或者 had any interaction with them on here at all, than yes, it's creepy.