Hi I'am also on Ravelry and my username is.... you guessed.... Welshcob!!
I'll be happy to make friends from here over there (mind boggling...) as I seem to go through phases. There are times when I'm on TAS every break I get from work, now I'm the Rav phase. I think it's because my brain can only take one forum at a time!!
I use Rav mostly to keep track of what I've been making because I'm terrible with writing down modifications, tension swatches etc. I struggle on Rav anyway, but when I finish something I'll write up about it. No chance I'll ever have time to update my stash until at least when the PhD is in and hopefully have a few weeks holiday
I also do what Dans said, to check up different versions of a pattern. It's amazing to see what people can come up with! Also I like to search for patterns and there are so many that are free and quite good. Although I seem to have a dangerous addiction to Kate Davies's patterns now and they all require quite expensive yarns - so you can look up at different folk what cheaper alternative they have chosen. Or put up yours.
Love both here and there!
(Get me out of both and back to work!!)