I'm all for the change Wayne, if it helps the site to carry on. There are just two things that concern me:
1. Availability of the old data
2. Preservation of accounts
a. To ensure everyone keeps their own username without it being hijacked
b. To keep post counts - yes it's childish, but you know, a high post count is a badge of honour on this site ;-)
Whatever happens, thanks for doing what's best for the site.
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moto