The VALUE of is an integer between 0 and 1000 that determines how readily Fossil will squelch requests from robots. A value of 0 means "never squelch requests". A value of 1000 means "always squelch requests from user 'nobody'". For values greater than 0 and less than 1000, the decision to squelch is based on a variety of heuristics, but is more likely to occur the larger the number.