>I think you'd have got a better response if you were clearer that that's what you were trying to do. "I don't know of a system but if we're to try and come up with one, [...]" or similar.

Perhaps you're right, though I'm sure the responses would also have been better if the system in question was an actual objective, technical system and not an ideological system. Decades of propaganda has caused many to automatically attack anyone who dares question the status quo economic aparatus.