I changed my name on https://social.msdn.microsoft.com/profile/.../, but I still see my old name in CREATED BY
field on my extension page. Even if I publish a new extension.
What should I do to rename my publisher name?
What I know is that the VS Gallery site has been updated to the VS Marketplace. Maybe you could submit a feature request like this one:
Or you could get support from the Marketplace directly using "General marketplace help" here:
https://learn.microsoft.com/en-us/vsts/billing/_shared/qa-marketplace-support