DynDNS? I’m not 100% sure what CF Tunnel does, but from my 2 min reading it seems that DynDNS would accomplish what OP described just as well.

Why wouldn’t you like developers to make a living? Do you expect to get a high quality app for free? Grow up.

Not unless you are using a monospace font

… vs ___

Makes the filename unnecessary longer.

No ads and a flat design that hasn’t changed in years. I could be wrong though, I’m not in the US, I just read about it.

Craigslist? AFAIK their business model is quite forward thinking.