It doesn't necessarily "tarnish" anything. It's just that Blood's abilities and features become weaker in the eyes of a new gaming community. Let me give you a case-in-point. Say someone new to 2.5D gaming decided to play the most recent version of ZBlood+. There is this impression to our new player that "that" is what Blood is. The movable sector features, Blood's rich sound environments, these and a thousand other niceties will be lost to our new player. He or she will think Blood was a lot like a gory version of doom.I never really understood why this was an issue. If someone wants to put Blood assets on another engine for fun, and assuming nobody comes up with a legal complaint, what the hell is the harm? How does it tarnish anything?
It wasn't.
It's not that doom isn't great or that her communities are incapable of appreciating blood, far from it. It's just that asking a lesser engine to do everything that Blood/build did is a little unfair to the original game. And trying to match what the Blood team did would be unimaginably hard, even on an engine that was up to it (DarkPlaces).
What's wrong with Build (eduke32) after all?
I'm not trying to "forbid" anyone from doing what they want btw. We're on the verge of possibly getting an engine to play Blood on that will hold the community together. If that wasn't the case an attempt to port Blood would be close to mandatory- it was several years ago, arguably up to the point when Jace made his announcement on Aug. 02. If Jace Hall can get Blood on a easily modifiable Build engine however, why would we as gamers seek to water down that effort?