Ask PG: are Y Pipes machines banned from fetching rss

Have you banned Y! Pipes machines from fetching the news.y.c rss? (almost?) all Yahoo! pipes fetching the feed http://news.ycombinator.com/rss are failing and showing this error on the debug console

' error fetching http://news.ycombinator.com/rss (502 Bad Gateway) '

example - http://pipes.yahoo.com/pipes/pipe.info?_id=KCPCxw8t3RGoQM1MLe2fWQ