DragonFox69 said:
@somethingedgey: If you mean how to have the standard navigation tools at the bottom of the screen after page 750 do this:
Go to the last post on page 750 (in this example mammal) and copy it's ID.
Add that ID as an ordering prompt like so: mammal id:<3047889
You can now search the next 750 pages of results like normal.
Repeat for multiple uses. ;)

whoops. figured out too late that i didnt edit the fast travel bit
but i still dont know why it stops after 750

@somethingedgey: It was changed to be that way fairly recently. It's to reduce the load on the server.
Before the change the server had to return so many results to so many users at once all the time that it was pretty much going to end up too much to handle as the site got more and more users.
The thinking basically is that if 750 pages aren't enough to find what someone looking for then they need to be more specific with their searches. :)