[01Michael10]

It's 2014 (almost 2015), you don't need to give your personal number. Google Voice is free and seems to work but can't confirm since the last text posted was at 12:28 pm. Bonus, one can use their PC with a real display and keyboard if use their GV number.

[tarkin2]

Google Voice is not available everywhere.

[01Michael10]

Same with cell or phone service...

There is not other services like GV that provider a phone number?

[tarkin2]

I think the point is that email signup would be preferable for those who don't want to give it their personal phone number.

[01Michael10]

It wouldn't be a texting only to post site then would it? My point is there are free services where one can get a second phone number for uses like this.