by my experience all the noobservers iplayed had custom glows. But as an idea i like it because it provides something different. Try and use solid colors and not the changing ones.
Go and find the l2brick source files, they must still be avaiable and use their scheme buffer. Its easy just copy paste the buffer settings from config.java on the core and the rest is on the scripts folder on the datapack side, dont forget the sqls of the buffers.
The feature thing is not always the problem of the server. Sometimes you change some features on the fly but when you change the description on a topsite like hopzone for example you must wait aproval again and most admins dont do that because they dont want to lose the listing and the votes while server is awaiting aproval.
I mean every few days i here someone gets one, who is doing it and what he expects to gain from it? Why it didnt use to happen few years back?
//discuss