I wasn't thinking about "reinventing the wheel" so to speak.

I thought it was mostly an issue of which software package to migrate too.

There are several (I believe) such packages that support diary systems.

But maybe this is thinking about the issue backwards.
What systems are in consideration for TOD 3.0?
Perhaps it would be easier to comment on them?

dKos uses Scoop, which is the package TOD uses now.

But there's more to consider than just the software.  There's bandwidth, and hosting space.  Someone is going to have to buy the computers to store all the blogs (if we go that route), and pay for the bandwidth.

And to tell you the truth, I really don't like the way dKos works.  It's impossible these days.