One quick comment: I was threatened and on the brink of being sued by one of Facebook's bigger law firms, because my domain was called "***gram.com" — I went through a couple of calls with them, and they confirmed that the only issue was the use of the word "gram". I tried to stick to my guns, knowing they had nothing (legally) on me, but eventually had to give in once they told me to research the ongoing cases they…
Because telegram is still out there.