Expectations are certainly one hurdle. The other is probably competition. MINIX3 and L4 are also out there, presumably competing for a limited number of microkernel enthusiasts.
Posted Sep 30, 2013 6:42 UTC (Mon) by rsidd (subscriber, #2582)
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Well, Hurd runs on top of a microkernel (Mach) and had been ported to L4. Apparently that didn't work out. But one can be both a microkernel enthusiast and a Hurd enthusiast.
New GNU Hurd, Mach, and MIG releases
Posted Sep 30, 2013 15:57 UTC (Mon) by Kluge (guest, #2881)
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>But one can be both a microkernel enthusiast and a Hurd enthusiast.
Sure. My point was that as there are a number of FOSS monolithic kernels out there, anyone preferring to work on HURD will be a microkernel enthusiast. But HURD isn't the only FOSS microkernel-based OS out there, so there is presumably competition for those developers.