Mine just got removed, you might want to wait until the official release. I'm not sure why I got it early, might be because I enabled the experimental mode in renshuu.
Yours got removed because of a bug - it had nothing to do with any experimental features.
As to the button: for those without any points, the icon will only appear when a piece of user content already has points given to it (to prevent too many icons from needlessly appearing)
ohk!! so from what I understood it can give renshuu pro access to non pro users for one day when u give them the supporter point? ( but what if the user doesnt intend to do renshuu that day? in that case wont his membership be missed that day?)
