Bill mellowed out as he got older. He used to be infamous for cursing during meetings. Joel Spolsky has an amusing story about it:

http://www.joelonsoftware.com/items/2006/06/16.html

Fantastic read. I needed that, thanks for sharing.

Yeah, although it feels good in the moment to let loose whatever salty vocabulary you have, it definitely distracts from the substance of your point in most instances.