Yes, we strongly urge you to register. 

In keeping with the spirit of our time, iMechanica is open:  anyone can read any post without registering. To post in iMechanica, you need to register for a free account.  However, even if you do not post anything, by registering you make a statement: you encourage fellow mechanicians to explore a new mode of communication, a mode that is faster, opener and more interactive.  A large, active user list will attract more and better posts. 

That is, by registering, you will have better posts to read in the long run, and you make a contribution to promote mechanics.

Registration  takes 36 seconds.  All you need is a user name and an email address.  Your email address will be invisible to other users, and iMechanica will never abuse your email address.