Why create team members?

Question

General question here about Trello for company usage:

Why create separate accounts for team members when you can allow different people to access the same account? Which Trello services included in the free version would I miss by going for the latter?

Thanks :)

Michael Pryor · Accepted Answer

Besides security, you wouldn't know who did what.  It would just say "the account did x" but you wouldn't know which Person that actually was.