They are still new to this forum, even if they've been registered for over a year surely? Their rank is still newbie, hence they are new.
Or his/her post quality is low because s/he is interested in bounty campaigns, giveaways and other shitcoin related stuff, and is now aware that some rank is required for most of those.
There are only 4 posts, so it's hard to tell, but again, having only 4 posts after a year, shows that little interest has been put into the forum. In that case, you would be right: the person is a complete newbie