Wrong reply count in forum threads

[ffont]

It is possible that forum thread displays where the number of replies is indicated (hot threads page, forum threads page and thread page I think) is wrong because it also counts the original post as a reply. This should be double checked and, of necessary, fix the number of replies by adding a -1. Also it should be checked if there are other pages where the fix is necessary. I'd advocate for adding a @property in the Thread object which returns number_of_replies.