Phasing out v5

[Admins]

It's almost one year since we have released v6, time to proceed and disabling the old version. However there are still around 10% of players which use v5. Please tell us why you use v5:
- Because v5 looks better/different?
- Is v5 faster for you? Have you recently tried v6?
- Advancements like external PM windows are not a reason to switch?
- Playerlist on v5 feels nicer?

If v5 is released, the development staff including scripters can use more advanced features of v6 like multiple GUI styles and external windows. Will you switch to v6 if the old version is disabled or will it be a serious problem for you?