[andrew.lee]

Bonjax - the majority of our customers use our chat inside their login walls, so you won't see the chat unless you have an account (in many cases for vBulletin, you not only need an account, but you have to be in certain user groups to have it active).

Both the sites you listed actually are still using it and are quite happy. Here are some examples:
1) http://www.gatheringstatic.com/forums/ (does not require login)
2) Lacuna Expanse: http://us1.lacunaexpanse.com/ (does not require login)
3) StarHawkCenter: http://www.starhawkcenter.net/ (requires login)
4) http://www.benzoexodus.com/forum/ (requires login)
5) http://forums.phoenixrising.me/ (requires login)

You can take a look at many of the forums in people from this thread as well, as a good chunk of them are using it on their sites.