What if Byond had some kind of service set up where if you payed 5$, you could have code read over and allowed to be put into your CSS page. In example, you would send in an HTML section of code you wanted, and could use some sort of @import url that was verified by Byond. I'm sure there would be an easier way, but you get my point.
I feel that a lot of member would do this, and it could provide to be a valuable service. If you feel that it would be a work overhaul at such a cheap price, upgrade it to the cost of 10$ and I'm sure you won't see as many people wanting to do this.
I'm not sure if something like this is feasible, so those with more knowledge/opinionated stances, please discuss.