speccyverse: You misunderstand the problems at hand. An http, gopher, or IRC server (your examples) don't require 100 people running programs on them. Nor does a single-purpose server actually need multitasking. (For example, Pepperfish uses a web server that's just one process. It can serve thousands of requests a second [quite literally] without the OS multitasking at all.)
I hope you'll also note that I didn't say that RISC OS couldn't be adapted to have PMT, simply that the changes would be so vast very little current software would work under it without them also having major modifications.
"It's interesting to see that unobscure software i.e. FLOSS has falled."
I can't actually parse this sentence, much less understand or reply to it.