Native SSH Shell Max Scrollback Lines

It seems as though the maximum number of scrollback lines you can set is 99,999 as oppose to Putty having around 1,500,000,000.
Clearly Putty's maximum might seems a little overkill but I do tend to set mine at around 200,000.
When you're working with large amounts of output like we are here, the larger scrollback comes in very useful.