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possibly. Namespaces are very new to php, so programmers who taught themselves via php might not have much experience using or general knowledge of them

It's only been in the last 2 years or so the php web hosts have upgraded to version 5.3, which is when namespaces were added.

There are a LOT of long term php developers who have never used them.

What I hate about namespaces in PHP is the separator they have chosen \.