Bisection divides users and developers

If you're unhappy with how your distro provides support, that realistically is between you and
your distro.

The upstream project has to draw a line somewhere. I totally agree that blindly asking for
"please test the tip" isn't the right thing, that's just pushing people away for now. At the
same time, if someone, say, reports a bug in the 2.6.9 kernel, it's also not realistic for
kernel developers to work on that. I consider it a reasonable request to the user to at least
use the last or last-but-one released versions; if you're using something earlier it can mean
pretty much two things:
1) you rolled your own - you should be able to roll a more recent version
2) you're using a distro package and don't know how to use a newer version - you should see if
the distro support can help you

Most healthy projects move so fast that a 2 year old version is no longer useful for the
developers to spend time on. This is part of the prioritization thing the articile mentioned:
as developer you end up spending your debug time on those reports which have the highest value
for the time invested. That is a combination of
1) a sufficiently diagnosed bug
2) a bug that hits many people
3) a bug that has a high probability of being unfixed still
   (and the fix being applicable to your development codebase)
4) a bug that can easily be reproduced

The more vectors a bug scores on, the more likely a developer will spend time on the bug. And
that's ok in my view...