Pinups and suggestive artwork aren’t against forum rules,
If this is the case shouldn’t NSFW be added as a possibility to the thread title? I mean I don’t know why anybody would be looking at star wars art at work anyway but it wouldn’t hurt to at least warn people who just think it’s normal star wars art that some of them might be suggestive. Not saying they shouldn’t be allowed (although I think it’s silly to put it mildly but to each his own) but at least a warning seems fair to everybody.