The question about it's legality was raised under the resource discussion thread.
So I felt it appropriate to ask the question in the general arena.
Does this raise any kind of potentially legal issue? If so, what are these issues?
If this thread is in the wrong place, feel free to move it.
Please do not turn this into a Tapatalk bashing thread, if you don't like it, I'm sure you already don't like it prior to this. This thread is only to discuss this button addition to the emails and the legality of it (since the question was raised)