Yes, preceisly what allanienhuis says above. The Chimney Sweep taks are important, but mundane. E.g. some (a lot of) people dislike bug triage, but it's damn important. I like triaging (and fixing) bugs. To a decent extent, a bug report means something is bothering a real user. Fixing that is more rewarding (than writing features that might be useful for someone).

Edit: Just noticed SilasX below has a fuller example of 'yak shaving'. Thanks.