Let's be frank, a lot of the earlier BLM models were gay-for-pay rather than just gay or bi and they only did gay porn to have money for drugs or pay their alimony/CS or because they'd just gotten out of jail, so a lot of them didn't swallow cum.
Also remember that a lot of the earlier scenes were condom-only and it wasn't until like 2010ish that the site started having more bareback content, and even then only some of the time. So if you're expecting to find old BLM vids with cum eating, you'll be disappointed.