user id question

[Robert J. Hansen]

> Is it acceptable to have multiple 'user ID's with the same address e-mail?

There's nothing forbidding it.  Whether it's a good idea depends on your
own particular use case.

I'd recommend thinking long and hard before doing this, as it's possible
you'll confuse some badly-written workflows somewhere.  But if after
thinking long and hard you decide to go for it, knock yourself out: it's
allowed.  :)