I have noticed that some of my posts missing, somebody erased them. Maybe I did something wrong and DP punished me. Where I can find that in FAQ/Rules
You must've been posting too much in introduction section or making some irreleveant posts. This thread could be reason as well http://forums.digitalpoint.com/showthread.php?t=67599
Looks like you've been keeping us busy. You deleted a handful yourself, some were regarded as spam and deleted (don;t promote yourself too much early on), you dropped fake signatures (wait till you have the right to have real ones), you posted a review in the wrong section whilst you didn't have enough posts etc. for a review (got deleted) and you posted in a thread that got deleted since the original post was spam. To sum it up, 'a mod's worst nightmare' Just kidding, take it easy and help others first/discuss before asking for help/promoting your own stuff.