When I see a "Support" link on a web site, I'm usually at a commercial product site and the button invariably takes me to an intermediate page with links for a bunch of different support options (phone/email, knowledgebase, driver downloads, forums, etc.). I don't know how many NITRC-hosted projects have a generic support page like that, and I doubt many need one.

Wouldn't it be better, if you have (for example) a wiki and mailing lists to have a button labeled "Wiki" and another one labeled "Mailing Lists?" For precisely the reason you mentioned ("Projects can offer support to their users in many different ways"), a generic Support link would be ambiguous and unhelpful, except perhaps for projects that do have a support jump-off page.