Paid service plus functionality for branding removal

[SpS]

Please provide option as one time additional optional fee to remove branding EULA req. about ("Powered by Atlassian")

This is really not serious approach not to offer such option.

We don't want our users to go anywhere outside our website/brand.

Developer who want to know what cool soft were used to create such documentation will always find a way to do that. So you can be sure once someone will like it will turn to you.

This should be possible especially in self hosted version 

I don't understand this forcing, lot of various web/server software offer optionally such possibility.