Just hit 20+ comments on of my posts here on the forum and now I can't seem to access them other then by going to ?page=2.

Or am I just tired and blind?

Nope, you're not blind. Well spotted! There is, however, another way. When you're on the forum list (or viewing a user's posts), each thread has the last post linked in the last column.

If you click the timestamp, it will take you to the last page. I recreated the example you were referring to, try it out:

Last updated 8 years ago

Yeah sure that works. But really? That's not a solution, it's a bypass of the problem. :) October is a great product, but things like this make it hard to provide and receive proper community support...