Just my PERSONAL opinion - I was a little put off by the Homestuck stuff. Why not go invade PAX instead? IIRC that con was originally based on an on-line comic, so maybe Homestuck would fit in better with their focus - so go there?
I don't want to be slammed for steering membership away, but maybe getting a huge draw is just "Not All That," if a central theme is dissipated? Would Kumoricon at 4500 anime fans really be COOLER in the right way if we added 1000 Steampunk fans and had a Steampunk track added to the program? Or if we reached out to the aging, 55yro+ Star Trek Fan set, and the cult of The Blake Seven and other cheezy Brit SF TV of the 60s thru 90s? Red Dwarf? Or Monty Python Fandom? The Family Guy? Stargate SG-1?
Will Kumoricon devolve into just a general animation convention rather than anime?
OTOH, when Kcon was small we pretty much had to take whatever came, and whatever we could get. But are we yet big enough to do like a bloated red giant star? - that is - blow off all the extraneous stuff leaving behind a shining, concentrated neutron star - a smaller convention maybe, but even MORE strongly focused on Japanese animation, manga (the real stuff with kanji, katakana, and hirigana on the pages) and side topics like tea ceremony, ikebana, how to make a haori or hakama, comparative religion of Bhuddist vs Shinto expressions in Japan, historical topics like the Meiji Restoration, comparison of the battles of Sekigahara vs. Gettysburg, using the abacus, how to cook authentic Japanese foods with American store-bought materials and cookware but make it come out really looking like what's in a bento, kendo and iaido, bonsai, and Japanese sword making?
Or is this the same thing as what ski hills went through in the 1990s when all the "kids" kept showing up with snowboards instead of "real, traditional" skis - a sport that goes back centuries.
Although ski hills made the decision that to exclude snowboards would make skiing an aging, dying sport. Personally I don't think that enhanced focus on anime with a cogent but less than complete exclusion of its imitations would significantly handicap Kumoricon.