asking on Inkscape-user for more IRC channels didn't yield any new info, unfortunately. So it seems there is no active IRC channel in Spanish or Portuguese - which were the most 'disruptive' (lacking a better word..., sorry!) languages, according to Marc.
Could you all make sure that there's an explicit mention of the channel being for questions *asked in English* on your language's chat page (unless it's German, English, or French)?
Some smaller page updates will follow soon - and a section about animation is in the works :)
Kind regards, Maren