Attention all users of Smash Wiki! I have a message for you. Before I start, I'd like to direct you to Smash Wiki's user talk page guidelines.
It has come to my attention that things such as small talk or chat aren't really allowed here. Take a look at my talk page for instance. Most of the discussion isn't relevant to Smash at all, let alone anything serious. Eventually, one will get so many archives that the box will fill up and look un-organized.
The link to IRC is here. You basically use it for all of your chatting needs. I think this will clear the problem of archives. Also, besides IRC, there are things such as Proboads and other forums or other wikia sites.
When there, click wikia smash bros in the scroll bar. You'll be able to chat there. You can set up meetings and stuff with whomever you want to be there.