[The Toilet Paper King]

If he had copyrighted "HackCommunity" name, I think he could sue.

If you made a company "Microsoft" in Nigeria and registered a domain "microsoft.rocks" and started selling your own Linux distro "Windows MetroXP" U dont think Microsoft would fuck your ass up?

You shoud stick to programming.

Thats a trademark, not a copyright. And unless Oni registers a trademark for Hack Community, there is no trademark infringement. furthermore, despite his ownership of the domain, a trademark can be argued based on who actively used the name first. The owner of hackcommunity.rocks has owned and used the name HackCommunity via their facebook page for several years. They could probably effectively block Oni's trademark application on the grounds that he has been actively using that name far longer than Oni has owned the domain. But that would be up to the trademark office/court/whatever.

So ya - no legitimate copyright claim.