I think you mean *comedy 
Oh typos, thou art hilarious.
But I agree. I think what a lot of you are forgetting, something I've already briefly pointed out, is that the gag-a-day is not a genre. It's an updating schedule that got a unique term for itself (vs. bi-weekly). There is no difference between "gag-a-day" and "comedy"; both are meant for the sake of humor, it's just that gag-a-days are literally updated between 3-5-7 times a week and the fact that a lot of people update this way is the only reason why it's a thing in the first place.
Just saying. A lot of you are saying you want differentiation between "comedy" and "gag-a-day" but seriously, you're asking for Tapastic to make separate categories for two things that are basically the same thing. Take out the "a-day" part and you're left with gag. Comedy = gag = humor = whatever's made for the sake of comedic entertainment.
It would be like if they separated Twilight and Dracula apart from each other in the Vampire Fiction section simply because Dracula came first.
A lot of the problems you're addressing are solved by the following two things:
1.) Utilizing tags to their full potential. If you feel you need to list "romance" as a genre despite only having one romantic encounter between two characters (ex. in Time Gate, it's categorized as fantasy, but there are some horror and romance traits to it, but these traits don't dominate the series as much as fantasy, so I merely include them as tags) then put it in the tags. Searching tags works decently enough.
2.) Educating creators on how to categorize correctly. Some creators feel that because there are two characters who are into each other, their story is automatically romance, but that because they have one spooky chapter, it's also horror. A story's complete genre is the one that dominates; if your story is built entirely around a romance between two characters and that's all it focuses on, that's your genre. If your story is built entirely around paranormal activity, horror. If it's built around a monarchy that takes place in a post-apocalyptic world, fantasy. If it's just bits and bites of funny jokes between a small cast of characters or a certain universe (like for fan comics) then it's comedy (same goes if it's a longform story that's mainly comedic, think like Gus n' Al, which has elements of adventure, but is mostly just for laughs).
Adding a bunch more sub-categories and the like is not going to solve this problem, it may in fact make it worse, as presenting more choices is not always the better solution, but aiding in condensing choices for easier and more straight-forward selections and an easier search system.
Want to find a comic that has romance, drama, and horror? Search it in the search bar. Tag searching is still simplified, but as people have demonstrated in this thread already, it works.
