A big reason why I haven't joined the forums earlier was the lack of tapatalk support, I use tapatalk to read a lot of forums. Its IMHO easier when you are on the go. When I'm on the computer everything is 10x easier, but I really like browsing the forums with tapatalk on my phone.
I know some forums where the site administrators have declared that it's not possible due to technical issues. Some have other reasons. Can we get an admin to share their thought about tapatalk? Would you consider it, or why wouldn't you.