So even though you do get a post count (albeit a temporary one) for intros, it doesn't count to your 10+ and becoming a full member?
The rules on selling refer to the general chat section:
5) Only Full Members can post for sale adverts, Newbies need to be promoted to Full Member access before being able to post any for sale adverts. (At least 10 posts to non general chat sections will see you promoted).
To me that's all the stuff down stairs hence why I thought that you do get a post count to Full Member status even though they'll be purged in however many days.
I had forgotten about that bit - i thought they counted ..... either way posts in gen OT will get purged and when they do you will lose whatever posts you had in there against your post count if you're a full member - didn't realise it worked differently until you were.
Post count is not something i worry about clearly