I think this has been asked already in the past, but i would like to bump the topic.
Because currently everytime i get somewhat decent DPS, the only thing I can ever think of is that I probably just got lucky and got a good bleed.
With attack types in the combat logs stuff like that could be filtered out and I would be able to see if actually just did good(for once). Other ppl will probably also come up with a usage for themselves too giving us a bit more power in 3rd party tools.
For a temporary solution it wouldnt need to be an easy readable information, as long as we have any unique information per attack type, we could probably map the rest ourselves.