Comment 1 for bug 437006

I agree it would be nice to submit the subscribe request on exact matches for lp user name. But there's just too much UI work pending for anyone from the bugs team to get to this within the next couple months.

It's a relatively simple thing to do if someone is looking for a bug to work on to get started with Launchpad development. Launchpad is open source; see https://dev.launchpad.net/Getting for how to get code and get started.