No real difference? Six might mean I'm willing to give you another chance. Zero might mean I'm so disgusted I'm going to bad-mouth your company at every opportunity, and do everything I can to see you fail.

For a big company (Forbes 500), or one with an effective monopoly (cable companies, airlines), or one with big enough backers (some SV startups) it may not matter. In those cases, the company doesn't need any single individual, and the individual doesn't have the power to really hurt the company.

For your local "mom and pop" company in a small town with only a few employees, the difference between a 6 and a 0 might be massive, perhaps to the point of staying in business or not.