[mnutt]

Not in all cases, but in this particular case I think the "stepping on toes" part applies. Assuming that some percentage of repo authors do not want your proposed changes, your automated work is now now creating manual work for them to close the PRs. You either need to signal to the repo author that you have put at least as much effort into opening it as they would have to in order to evaluate and close it, or your proposed changes need to be _really_ beneficial.