I'm playing with Kdenlive quite a bit and manage to get a bunch of crashes just about every day (I love the bleeding edge! :D).

No, this is not an email to whine, that unfinished software (strangely) is not 100% stable, but rather ask, just how many of these are worth filing bug reports on? Is it worth filing every one with a description and gdb output (assuming something similar isn't already reported in another bug report)? Or, would this just be a distracting glut? Would a better approach be to only file those bugs which are fairly frequent, reproducable and crash prone?

I would think that any crash which is reproducable has a very high value to get an issue about.

The thing is, we all use software in different ways, and provoke different issues. Reproducable crashes are, IMHO, very interessting.

OK, good to know.

And crashes that aren't reliably reproducable, or are semi reproducable?

Depends on how much time you have :-)

See this, for an example for me: http://www.kdenlive.org/mantis/view.php?id=277 (btw, do you have a multicore machine?)