Re: The profile page should be changed. No one uses ICQ, AIM, MSN or YIM.
A lighting network invoice for tipping would be great 
They expire after two days though don't they? Or are you hoping of an autogen of some sorts.
+1
Telegram, Discord, Signal (though I wouldn't be putting my # out there), and so on and so forth.
At least in the case of Tele and Signal, privacy minded apps.
Can't you access other people's number from telegram? I thought you could (since it's required).