[Answer]

Abstrakt is the only name I remember, but it's a pretty common name tbh. I'm pretty sure there was an Abstrakt on HollaFront.

I wasn't super active on UF. I posted here and there, but I mainly just posted topical pieces and shit that I had already written on HF. The only people I really remember from UF is Kin*Ethic, Rekluse, Neuro, IllConceptz, 13th Apostle and Ah Swuh Pwn. Also, Heaven's Demon runs the live battle league that I'm in, I know he still talks to Middy

Answer & PurelyDef/PurleeDef are the 2 names I've used most frequently on forums. I used to be on HHAP as Apostle (Not 13th Apostle, who eventually also joined HHAP) and Raptism as LyRiCaL ArTisT, which was the first name I really used for longer than a month. You know it's serious net shit when your name has the word 'lyrical' in it and every other letter is a capital

I was on SV when I first met Reed, but that was such a brief stay that I doubt anyone would remember me

Speaking of obscure sites, I don't think I've ever run into anyone who posted on raptism.com on an outside forum