hey frozenbaby, i can only tell you what i think i cannot speak for the community. in my mind the 3dgs community consists only of a few good coders that understand the potential of your database thing. and those probably come up with their own solution.
the problem i see is, that you can create games already without your tool. i have to ask myself why do i need an external tool if all this can be done with 3dgs anyway?
database queries are not easy to understand in 5 minutes, most of the people here dare to write their own .wdl code because they are well fed with ready to click games together in 5 minutes templates.
people - especially the "noobs" are more impressed by visual things like the sphere plugin or olivers or triplex level editor. database means work, thinking and so no one has interested in it. most of the community just want to make games fast without many problems.
i for myself can say i havent come up with a problem yet where i would need a database... all the things you named can be done via your own textfile format for example. shure thats not as clean as a sql database but it works well for my needs.
i really like the way you put work into this and gave the opportunity to actively design this thing. to sum up it was probably a bad idea to create a database plugin for the 3dgs community.
if you where making a kick ass graphics plugin this thread would probably be 20 pages long. i dont mean this bad, its just the reality in my mind.
just look for a good professional team making a game with 3dgs to support them with your coding skills, make graphic plugins for a6 or even better try to write a port of raknet for a6

please dont take my reply too serious thats just my opinion. good luck with whatever you do in the future wheter its here or at another place.
edit: just look at the indiglow voice server or even the unofficial irc channel. there are 5 people online at peak times -> this shows how lazy 3dgs people are.