[brlewis]

I may have misunderstood your initial comment. Was Vignette a nemesis because letting people migrate to Django from it while preserving URLs involved commas, or was it just a nemesis in general and you're pointing out a flaw in how they did URLs? If the latter then yeah there's no point in me mentioning a mainstream use of commas in URLs.

[simonw]

We just thought that having URLs with obfuscated IDs and multiple commas in them looked really ugly.