It can show unlimited number of posts, but depends how fast the node can do response.
The public nodes sometimes work really slowly.
8 month ago this script flew fast, but last month the most steemit nodes overwhelmed and apps which scan a lot of data work slowly
Thanks for the response.
Has it anything to do with the changes steemit made a few days ago as stated here: https://steemit.com/steem/@steemitblog/steemit-blockchain-team-update-appbase-rocksdb-bandwidth-hf20-smts-and-more
Because it was just a few days ago I was able to do any amount of quantity i wanted almost.
I have a reason many people may be wanting a service like you're providing and I'm not finding many other options in steemtools.