Happens to all, looks like mods are making a great job here cleaning the forum, and that's great because this is a huge forum, and fill it with trash is not the right way for knowledge. Just remember, sometimes is your post what's get deleted, other times is the full thread. So, the best way to avoid this is to not post on the spam threads or threads who you think mods can delete, and to not get out from the thread topic. That's the right way to roll.