Fair enough, still not a solution for the "common user" (for whom something that is not there in the main site with an .exe extension, doesn't exist at all). It's like you politely told me "well if you like it make it yourself" (and I discussed about that kind of talk above).
I already said it shouldn't be the default (...yet - because in the end I find it inevitable that it WILL be the default, give it a year), fine, but it should be there in the main site, as one of the official builds (and possibly a separate MESS-only build too, but not a separate site and team any more). It's not only that unified would be "better" (in so many levels), it is also that MESS doesn't get any of the "limelight" of MAME project and is a pity - being "embedded" would strengthen it and its "spirit" would live forever through MAME.
Another thing, I am not really sure why the site couldn't handle such a thing (I am saying this because "web load" reason has been discussed above too), since the separate servers used already for the now separate builds could share the load.
Anyway. Thanks again for discussing this whole thing (which I feel was like a taboo some months ago?).