Does anybody have an overview of the packages with known Namespace collissions in Dynamo 2.0 and up?
No, and such a list would be hard to maintain as the package version has to be accounted for. A tool to check a package directory for namespaces used and generate a CSV of the ones which may cause issues might be a thing I am brewing for my proposed AU session though… 
I’'ll check for .dll’s instead of .dyf’s
don’t know if that hint actually works
it would save me some time maybe