this site is really, really broke.

earlier it was chewing up urls.

now it's got worse; just wasted about half an hour of my time (which i spent in writing a detailed code example as an answer). which it gobbled up without a trace when i tried to post it; it seemed to believe that i was not logged in.
logged in again and there was no trace of what i had been typing in.

i just give up.

bye, everyone.