The logic of this discussion really confuses me.
In regards to the people complaining that the ban on BSM is unjust:
MCSG bans BSM because of an unfair advantage.
Players still use BSM knowingly against the rules.
MCSG adds a way to remove people who have BSM, which was always against the rules.
Players using BSM think that's unfair.
If you break the rules that are there for fairness's sake which applies to every player, how is that unfair? Furthermore, where was this discussion earlier?
In regards to the people arguing that BSM "fixes" sprinting with 1.6:
1.6 sprinting was awkward, but fair because it was universal; it sucked, but everyone used it so it was fair. BSM is a modded client that changes gameplay unfairly in the client's favor by adding some additional features such as sprinting below the hunger limit.
1.7 promised to fix the 1.6 sprint by incorporating a lot of features that BSM implemented, such as one-button sprinting whilst eliminating a lot of the more unfair bits (like the hunger limit). But more importantly, 1.7 will be universal whilst still incorporating the most essential parts of BSM.
1.7 with good sprinting will be the norm that is universally accepted, so then why should we allow 1.6 with a modded client that is against our rules for the sake of fixing something that's already officially fixed? Why should we allow you to break our rules and cheat if there's a better way? (If you're concerned about performance, please read below).
In regards to people saying BSM doesn't confer an advantage that doesn't already occur within 1.7:
It's true that 1.7 has a natural advantage against 1.6, but that does not automatically make BSM for 1.6 acceptable. We can't allow people to break the rules for the sake of leveling the playing field, especially when there are some aspects of BSM that vanilla 1.7 doesn't give. Instead, if you really want to find where BSM's inequality shines, we should focus on a better comparison: vanilla 1.7 VS BSM 1.7.
In regards to those using 1.6 justify their BSM use because 1.7 is prohibitive to them:
Let me make one point clear:
there are things that we have no power over, and thus cannot change. It is because we cannot change those aspects that we take no responsibility for them, and must work around them in a manner that benefits the community most. Here are the things that we have no power over, and thus are forced to ignore:
- Minecraft Update Features. We love and hate the updates equally, but we accept them all the same, same as y'all.
- Minecraft Update Bugs and Glitches. The Mac caps lock deal is an unfair advantage gained from a glitch, from my perspective.
- Optifine's status. Whether you depend on the performance boost or not, we can't do anything to make them update sooner.
- Your computer. Related to the above, we can't give you awesome computers so that you don't have to depend upon Optifine. Some inequality will naturally exist by the beefiness of each others' rigs.
The problem is inherently that 1.6 and 1.7 exist and are expected to cooperate equally. In reality, they don't, and that inequality exists whether we like it or not. But just because 1.6 and 1.7 don't act the same doesn't mean that we should treat them differently, especially since this is a temporary deal. There's a reason why the statues in front of courthouses are blindfolded and holding a scale: they judge each case evenly by ignoring the wealth and status of each plaintiff. And we must do our best to do the same, regardless of the situation.
I was uber scared I would get kicked but it seems to be smarter than I initially thought. One issue is NCP. The restrictions on sprinting set by NCP often traps you (doesn't let you move) for 5-10 seconds if you don't stop sprinting every minute or so. NCP isn't configured strictly enough to prevent hackers and only really prevents good players from being amazing. 
