Your current categorization "system" – Hallowe'en (?!), Fun, Futuristic, etc. – appeals to amateurs and is near useless to professional typesetters.
I want to be able to see if a font has small caps, is suitable for body copy in books or is better for headlines and display, etc. It would also be great to be able to view by date designed and other typographic fine-tuning options.
Adobe has been in the font business for many decades. I would think that you could offer far better tools to find your font offerings.
Nick S commented
Adding my .02 here - while topical themes are nice, most of us deal with what's been in the comments - fonts for commercial themes or promotional themes. What about one for sports? News?
I think fun themes have a place but the professional needs and themes need a seat at the table, too.
Massimo Baita commented
It is useful to search based on the presence or absence of ligatures.
Bobby Henderson commented
It would be nice to have search filters for more advanced categories, such "humanist," "grotesk," etc. These kinds of search categories are available at online type stores like MyFonts.com. They'll also include tables to show all the glyphs in a font file and the advanced OpenType features, such as true small capitals, ligatures, etc.