Comment swap thread rant

I dont know how many of you have used the comment swap option thingy but I have uses it a few times now have received nothing back. Now its not like I dont actually read the stories they send me or and i write a decent comment. And I subscribe if its a really good story and yet I get nothing back. Its quite annoying actually as like any other writer I want my work read/subscribed to or recommended too yet I get nothing. Zip! It may seem pointless its just annoying thinking I spend time reading other stories with nothing in return. Rant over :)