A more charitable conclusion would be that brands and institutions want to ensure that accurate information is available. If a company is 5th largest yet they'r

A more charitable conclusion would be that brands and institutions want to ensure that accurate information is available. If a company is 5th largest yet they're shown as 6th then of course they want to correct the entry. However, I agree it's probably abused to remove any unflattering information. Wikipedia does have a number of editing guidelines, dispute resolutions, etc. It appears they have tried to combat abuse, but I'm sure HN readers can find many failures :)