I see that currently ovsrobot and UNH Lab have rules saying don't test on RFC series, and Loongson and Intel do test on RFC series. I'm guessing the thinking was something like "RFC patches are at least one stage away from merge, and probably do not represent the final state of the patch, so CI testing is not very valuable." On the other hand, I'm sure in many cases getting that early feedback, even for an RFC, is helpful to developers. I'll bring it up in the CI testing meeting tomorrow and see if any of the CI testing people have an opinion. Anyways, I think all labs should have the same policy, be it testing or not testing on RFC patches. 

Thanks for the feedback.