You can only vote once... but in that vote you can choose as many of the names as possible.
I agree, it would be nice to get some WK guys signed up to vote. But at the same time, what came first.. the chicken or the egg? I don't expect to see a ton of WK activity right away, but over time I think it'll help the site grow.
The WK won't really need a lot of "sub forums" either. The entire point of this is that there is so much in common between the two platforms that we'll have the same forums. Maybe a sub forum for WK exterior & interior mods and XK exterior & interior mods... but drivetrain, suspension, wheeling, etc will all be shared.
I don't think any WK members will ever want to put an XK-Forum.com decal on their WK's... so are the votes for that site name from people who want to retain an XK only site?