Yes, drop them, no worries.
Or print each thread out onto papyrus, put it in a glass case, hide them in a pyramid somewhere in Egypt, with all kinds of booby traps only searchable by some kind of archeologist/prince-of-persia like dude who is knowledgable about idols and skilled at using a whip, who will someday crack the glass case, only to discover they are nothing but rants by some grouch named raja and esoteric ponderings of a community of artists who, long ago, used to push these things called 'buttons' on this thing called a 'grid'(which by that time in the future, will be foreign to humans as they will have evolved beyond such interfaces built around static-topographies, and will be using some kind of interdimensionally-morphing interface to push qubits across the entire space-time continuum, sometimes to express themselves, sometimes to control the universe, and most of the time, just for shitz and gigglez because they can...).... wait, what was i saying?
oh ya, export to html would be good, but whatever you decide is probably fine, as those forums don't seem necessary(? am i wrong? ...i'm not visiting them often anyways... and most of the info. i need seems right there on the 'docs' link viewable on monome.org proper)... so i wouldn't cry if you got rid of them altogether...
but in case it helps... and just for reminiscence(to those of us who've been around that long and used max/msp back in the day(90s)), here's something from the old school days of the cycling74 'mailing list' from before forums existed:
(anyone here remember Netochka Nezvanova?
such a great article on her btw: http://www.salon.com/2002/03/01/netochka/
ahhhhh, the 90s and early 2000s, haha, back when internet-trolling was not quite coined and the dissenting-anomalous-freaks were truly dangerous)
anyways, just an example of how things could be archived if you wanted to go that route.
(but don't keep paying hundreds to keep that shit, we'll support whatever your decision is )