Consultants or professional services folks will be working in their company’s GitHub account and several clients. Requires managing lots of git/GitHub accounts

> Are there any good reasons to use multiple GitHub user accounts?

Is there any good reasons not to separate what you work on into multiple GitHub accounts? Not to mention some people don't want all their projects attached to one profile, some people also develop in their free-time, and don't want to mix freetime/work projects under the same user account, for multiple reasons.

A why not

B if you ever be in a company using the half baked GitHub hosted enterprise….

I use a pseudonym during my free time, so yes. Also my employer is requiring us to use company-specific GitHub accounts, so the decision is out of my hands anyway.