Hi. I've worked for WordPress.com for the past five years. It does run the open source WordPress codebase, and we sync changes from the open source project to WordPress.com regularly.
:vanishes in a puff of php:
:vanishes in a puff of php:
It's still not equivalent to running the same code, or being in any way a comparable to a managed host. Which is the point that you skipped right over, as is your custom :)