At any large forum there is often a large amount of forum reply spam. In other words members will post meaningless or nearly meaningless replies in an effort to do one of the following:

1) Get their signature file noticed.
2) Get their post count up to increase their forum benefits (i.e. some forums require that you post a certain number of times before you can have a signature line).

Often it's easy to identify reply spam because the posters engaging in this...