That's a very thorough argument. In a very high-volume medium like the LKML where it is necessary to filter out relevant stuff, you usually don't want anything

That's a very thorough argument. In a very high-volume medium like the LKML where it is necessary to filter out relevant stuff, you usually don't want anything that provokes lengthy discussions, as these waste the time and patience of hundreds of people, including the submitter himself. Clearly stating "fuck off" instead of "yeah, your contribution is really nice, you have some nice additions, however ..." when the maintainer will definitely reject the contribution saves everyone's time.