Maybee a Flag called “wvw” is the best one.
It can be 1 for a normal account.
And 0 for a Free 2 Play Account, but automatic set to 1 if one character arrived level 60Mmm I think having an account-type indicator would make more sense here. Maybe just have a flag to indicate one of 3 types: Free, Core, or HoT. We could then determine for ourselves if the account has access to WvW – Free with a level 60 (or higher) character, or Core/HoT.
For the case the player didn’t delete the character.
If the player delete the 60+ character (reason: try another class or something, they have only 2 character slots), the account is activate then for wvw, but you can’t proof it without a flag.
So the player is in wvw, but did not get access for it.
Yeah i know, this is some special case