Apparently, with gmail, putting a period (dot) in the username is meaningless.
For example, my username is “matt.stratton”. However, mail addressed to “mattstratton” gets to me as well.
This is helpful to know. Because amongst almost all of my friends, the convention of “firstnamelastname [at] gmail [dot] com{.linkification-ext}” has been adopted. But some use the dot, and others don’t.
This means I don’t have to remember who does what.
w00t.