I have temporarily re-enabled it, but in the last few days Tapatalk has apparently decided to start charging forum owners to remove spam and annoying features. It started out as a nice way to add a feature to the site, but their new model of trying to be their own platform just monetizing the content from all their member sites, and then on top of that expecting sites to pay to not have spam pop-ups and signatures, and putting in place the tools to start marketing directly to members by mining e-mail addresses out of the user database, etc is simply not acceptable.
I'm going to work on a responsive style for the site that will perform better on mobile. Tapatalk is 100% going away very shortly unless than immediately change course on their new business model. Ever since the app design change Yinzer mentioned above usage has dropped off sharply anyway, to the point where only a couple dozen people use it regularly on this site anyway (per their own analytics).