OK... I don't use IRC for support... Here's why... Unless it's a bone simple problem, and a quickie fix, when I immediately reply to a technical question, my answer is likely incomplete, misleading or blatantly incorrect due to a less than perfect memory.
In contrast, the forum allows me time to detail my reply, and to recheck it for thoroughness before I post. I'm reminded of O-P's throughtful posts where every step in an answer is meticulously detailed and highlighted in color. And it's preserved (hopefully) in the site archive, so it can be recalled, and viewed by others having a similar problem.
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+1- 49 times on this!

Right - so we can do away with the support channel?

Of course we won't ... but if above is true (and it sounds sound to me) we just as well might ...
We have a social channel and a support channel. Both are quiet - very quiet .... maybe they can be merged.
Of course there is little need to change the status quo - it's not that we are paying per channel, but a somewhat busy channel certainly looks better than 2 dead ones ...