Personally I re-wrote it once and my cookie has has my back for a few years right now, but YMMV depending on how often you change browsers, delete cookies etc.

Personally I re-wrote it once and my cookie has has my back for a few years right now, but YMMV depending on how often you change browsers, delete cookies etc. If you're doing that often or if you're part of the "HN Crowd" it should be trivial to write a quick bookmarklet to do the re-write for you.