[coffee--]

Mozilla worked with some researchers to analyze a bunch of degenerate cases like that and basically the answer is 'no', that the CRLite paper's calculation of an optimal false positive rate per layer works out quite well.

What does happen in CRLite is that you can't keep shipping the tiny "stash" updates to clients, you have to mint a whole new .mlbf filter file, which is about a megabyte. [Edit:] Then you can resume the "stash" updates from there, but the ecosystem 'shock' requires a regeneration of the filter.

(There was supposed to be a blogpost on the Mozilla blog from the research teams; I don't know if it was ever written.)