It seems like this already a full member because there is nothing to show with doubleU received merits.I think his post are being deleted that's why the activity is low.
I think this is one of current bugs of bitcointalk's merit system, and Theymos should do something to stop this. My suggestion is if someone delete all their past threads, their account ranks should decrease to newbie and merit points should be decreased to 0.
This new rules will help to minimize account trading and stop them to do shitty stuffs like this guy.
I can not imagine that someone buy a Ledgendary account, then delete all past stuffs and total number of post-count drop to 0, the account rank then become Newbie, but merit points still be 1000 or higher.
It's extremely ridiculous.