I see what you mean to an extent, and I also just moved over, but it's worth remembering that Digg -> Reddit was the same afaik. Like Reddit had been around and established for a decent amount of time before the fall of Digg. (This is second-hand info because I wasn't around at the time)

I've heard of bi as experiencing both homosexual (same-gender) and heterosexual (different-gender) attraction. That's the definition I like, as it's not necessarily non-binary exclusionary and so accurately describes how I experience attraction.