"Original - II"

Are you suggesting that I install WhatsApp, provide my phone number, and publish my WhatsApp account here so that my phone becomes accessible to everyone on the heroesworld website?
Why would I do that?

I messaged you on ICQ from home; I'm at work now, and ICQ is strictly prohibited at work, so I won't see your message until evening.

P.S. I will only install WhatsApp if it is explicitly stated in the tournament rules or the website registration rules. Currently, the rules specify standard tournament registration, which requires providing an ICQ number during website registration on heroesworld. Or, as I understand it, information that replaces this number – in your case, it's an email.
There is no talk of WhatsApp yet. So, we are just discussing WhatsApp out of curiosity.