Hi!
Yes, sure, your free time is a different matter. I just thought you are speaking as a WMF employee here, since you were using this email. I am
It's Sunday here, so no :) I do use two separate logins for WMF official and volunteer work on Wiki, but using two emails is too cumbersome for me.
probably over-sensitive there since I am used to the very strict policies of WMDE. They are very careful to keep paid and private activities separate by using different accounts.
Surely, it is common in WMF too. But again two email accounts seems excessive to me. Usually it's pretty clear from the context but if needed, I will clarify.