Not really spam but it does indicate that the post is being generated by a mobile app called tap a talk that is supposed to make mobile device posting on forums easier. I never use it because it is easy enough to type on the mobile device being used, such as a smart phone, tablet, or ipad.
I am not sure that the tap a talk message can be defeated but my Samsung Galaxy Tab and Samsung Siii insert a "sent by" message at the bottom of e-mails that can be defeated.
O.T.O.H. I suppose it is a form of spam.