Yep, I understand TXT helping the hard of hearing thing. Allowing E mail would help the situation. When I see TXT only, it makes me think a seller can't be bothered with checking e mail or listening to voice mail, in that case I bypass their ad entirely.

As for people still calling. If someone only has a land line only how can they txt? What if they are poor spellers ( or functional illiterate ) how would they contact you without embarrassment? How would a blind person txt you?

Perhaps stating why txt is preferred would reduce the calls. In my case if the reason for txt only was stated and I really wanted what the other party was offering, I'd make an effort to txt somehow.