I'm so sorry guys, I'm still new to the land of Forums and Tapas so I hadn't realised I wouldn't receive an email when replies came through! I've pinned a tab open now to get me to check more often 
So glad to hear I'm not the only one! I hadn't realised the Mature section was a new thing so that would make sense if it were a temporary thing to catch our attention deliberately, @Maps. I've been on Tapas for years but have only recently become more involved now that I'm ready to share my own comic, hence I didn't realise. I know, that sounds horrible, but I'm trying to make up for it by following other new artists 
I'm not sure if we really need to have the Mature section pushed upon us using this, what we in the design world would call an anti-pattern, but I appreciate they want to show it off somehow whilst it's new.