It is likely that most of the deleted posts are for consecutive posting. (My guess)
It is against the forum rules to make more than one post consecutively in a thread.
If you want to add more to the thread and no-one else has made a post yet since your previous post then just edit your previous post and add the comments.
EDIT:
Forum rules Common rule violations resulting in deletion and/or banThey ganged together to report his posts en-mass in the hope to get him banned. All
mr.pacy.mf did was to throw back the same comments at temhuk as what temhuk said to me and several others including towards
mr.pacy.mf