:::No, because you are insinuating that everyone who has a specific job is a "flack" and an unethical person and this is a horrible position to be taking, along with one that is entirely and utterly wrong. 

 :::And there is no "bright line rule". If we had such a rule, we would also have to apply it to everyone else that has a COI, including article subjects. Then it would have to be extended to people who have a significant COI in other areas and then people who have even a small amount of COI and, since everyone has a COI or they wouldn't have decided to improve an article subject anyways, no one would allowed to edit. 

 :::The point is that COI is largely irrelevant. What matters is whether the user in question is following the policies and guidelines we have set out for neutral editing. If someone who has a COI can do that, which they can and have before, then them having a COI has little to nothing to do with their editing. I'm starting to understand the people who want to get rid of the COI guideline completely, since it essentially ostracizes a section of our editors, even though they have done nothing wrong. It all comes down to editing neutrally and nothing more than that.