Not scammed but is this against rules

So this guy iAfterLife adds me on MSN bc Im selling pins. i talk to him with no problem but he says i have to go first to him. i said no i wont go first. he says im trusted and legit and you have one vouch. he only has 2 vouches and his biggest vouch is from a newcomer with 2 posts. so i said your not trusted and your not legit im not going first to you. he starts flamming me he is very ignorant btw. so i was calm at first i block him. he posted on my thread i denied MM when he never said anything about any MM.... I NEVER DENIED MM.... so now he is telling every1 im a scammer. I add him again and we have huge argument and he starts getting me really pissed. i demand to see screenshots where i said i wont use mm. Bc at first he said i said no to the mm then he said i blocked him right after he asked.... he changed his story... he starts rly getting on my nerves bc he said he wont sow me screenshot of me saying no to mm or blocking him when he said that. he got pissed i wouldnt go first to him bc hes not trusted so flammed my page and started telling every1 im a scammer for sure. i havent gotten into a trade yet. the kid is lying about me...

EDIT:
I REQUEST HE GETS TWC

http://sythe.org/showthread.php?t=1010205

AS YOU CAN SEE HE DID SOMETHING ALONG SAME LINES AS BIGDOG HE JUST STARTED CALLING HIM A SCAMMER BEFORE ANY TRADES ANDD GOT MAD I SEARCHED HIS NAME AND FOUND THAT KARL WAS GNA GIVE HIM TWC! please do he lies.

 

An admin has to give give him a TwC, just wait.