when i first started i followed someone, work i liked. when i found out that i would get chatter from every post, new upload, reply, comment etc - i said, nope, bye! and never followed anyone again.
of course the other negative is, if you follow people, that's another way out of your site. so a buyer out of curiosity, may leave and look at a follower. of course that works in my favor just fine...
---Mike Savad
MikeSavad.com