I managed to change the code to @anyone, because I often need to get everyone's attention but with the word anyone.  Would it be possible to add more than 1 word to this?

bool pingEveryone = nameOnly.ToLower() == "anyone" &&​

I want it to mention everyone with @everyone and @

bool pingEveryone = nameOnly.ToLower() == "everyone" || nameOnly.ToLower() == "anyone" && player.HasPermission(PermEveryone);