I'm all in for glowing effects on weapons with Materia. The glowing emanating from the weapon is a good indicator of powerfulness.
I'm all out for weapons' glowing in general. It's seamless and gives headache after some time you look at your weapon, that doesn't seem to be a weapon but just a shockstick. I mean, if I would've liked glowing weapons I would've played f*cking Tron or Star Wars.

Just tastes eh, don't take it like it's truth.