Sneak preview: gnomes have historically been a vehicle to mock and beat down attempts to break medieval stasis in D&D worlds by being the only people to attempt technology but then being either incompetent or frivolous with it.
Okay, I can see hate coming from that angle.
But, I tend to make them not incompetent and less frivolous. Not completely unfrivolous, because I do believe that they are the most joyful of races and therefor I like adding some whimsy and fun, but I've certainly seen gnomes mocked a lot in DnD settings when that doesn't make sense.
Honestly, Eberron is again probably the best setting for having treated Gnomes right. They are amazing in Eberrron.