most of them are hand grenades anyway and they make too much noise
The ones that are unreliable and too noisy are usually owned by the flat black helmet/flannelette shirt brigade who dig out some old dunger from Uncle Jim Bobs shed and expect it to be a race bike. These blokes and their dungers usually stay in the sport for as long as it takes for the bike to shit itself. A well built and properly muffled stroker should be quieter and just as reliable as any two stroke.
I'd like to more of them competing if just to add some more variety to the sport.
Interesting thoughts.
Some random ones of my own:
A 1980s XL/XT/KLR/DR-S is further behind a 1980s CR/YZ/KX/RM than the same comparison between 1970s models. In the first half of 1970s, the trailbikes had the same suspension travel and fork diameter as the MXers, for a start.
No excuse for XR/TT600/KLXes, though... Pre-85 excludes the TT250/350, XR600s and the decent XR250/350s, I guess - and while they're all decent bikes for their age, they all show their age against the late 80s MXers (damper-rod forks, rear drums, older egros, etc).
Heaven has always had a respectable roll-up of post-74 4-strokes over the years I've been involved: Paul's many and varied TT powered beasts, a couple of CR/XR hybrids, Dennis' KTM, some KLXes, an occasional 510, and the inevitable HL replica or two.
Allowing 250Fs in with 125Ts would be a travesty, IMO.