I really don't think you have anything to worry about XC, there is no way in hell that there is enough people in LFS land with a preference for axis clutch and/or H pattern shifter to ever see an option like forced clutch use ever being remotely abused in LFS
If any admins tried to do it there servers would die a natural death in a few weeks max
Bit like when there was a move to get people to drive the LX cars in the last year or so, no matter how supportive some of us forumers might be for the LX's the reality is that the vast majority of LFS drivers vote with their wheels, mice or keyboards and stay away in preference for other cars... the same would be true for forced clutch use.
I personally like the option to be able to race on a clutch, H-pattern server. Doesn't mean I'll spend all my time on them if there was more of them, it just means I'd spend some of my time on them if there were some about. As referenced to earlier OverBoardProductions had such a server up already that could force these options, I did race on there sometimes and thoroughly enjoyed racing against other clutch, H-Pattern users. Infact it was that server that spured me onto getting off my butt and making a sim racing cockpit, which has brought back enjoyment for many games, sims long forgotten and is even perking interest in new sims (for me) such as xplane, iracing, rfactor, etc again.
I'm often bemused that there is such strong views oposing some proposed options in LFS while elsewhere the mases cry that LFS is dying because of the lack of options.
Should we all just return to LFS S1H? I know a few that would mount an argument that it was more of a pure race simulator at that point in development, but for me if LFS was still like S1H I'd have moved on permently not because S1H wasn't fun but because I would have been long since bored of the sterilness of it.
My hope for LFS is that as it continues to mature it will be less and less of a sterile environment. At the moment it is still far too easy to do near perfect laps, lap after lap after lap after lap. For example this weekend in V8Supercars the qualifying sessions was able to produce much different qualifying lap times in the first half to the last half. Forcing clutch, H-Pattern allows an extra element of variability to be introduced which then adds to the immersion, tension and excitment of racing. We have other means to do this already in LFS mainly being wind which is used very rarely online, so I'd seriously doubt that forced clutch would ever be used any more than wind currently is.
FTR - I spent the first 2 years in LFS with an xbox controller, the second 2 years with a momo and the last year an a half with G25.