Because there are two possibilities:
1) There is a release date planned. Only a moron would have settled on a release date and yet not told everyone about it, which means that if a release date exists, it's available for you to find in the first post of the thread. The information already exists, so nothing new is imparted.
2) There is no release date planned. Asking about it will just let you know that there's no planned date. Nothing new was learned.
Either way, asking is pointless. Therefore it's spam, which is against the rules.
Going off-topic (say, to discuss the rules of a forum) is also off-topic. If you want to debate this further, please PM me rather than clogging up this thread. Oh, and mini-modding (the act of telling someone they're breaking the rules while being unable to do anything about it - and I noticed you didn't report Ahmed's post and leave it alone like you should have done, JV) is also against the rules.