I don't like screening/deleting comments on my LJ. However, there have been a couple of comments on my last public post whose sole purpose were to "promote" a community they're in. These comments consisted of a single image, and it takes you to the community when you click on it. Needless to say, they had nothing to do with the actual post.
Guys, how'd you like it if I went to the maintainer of your community and told them you were spamming LJs? Most community maintainers don't like that. Guess why. ;)
This is your first and final warning. From here on, anybody spamming my LJs with gratuitous community links for the sole purpose of "promotion" will be reported to their community maintainers as spamming. Good? Good.
(PS: Just because you don't see me posting doesn't mean I'm not active. This journal's mostly friends-only.)