Yeah, there seems to be something funky going on with the Twitter followers. We currently use a Google Spreadsheet Script to fetch these numbers. Will have a closer look today!
As for sorting, I think it's a limitation of embedding a Google Spreadsheet. We'll probably move away from it shortly so we have more flexibility, but for now you can visit the document directly: http://edit.submit.co/
As for sorting, I think it's a limitation of embedding a Google Spreadsheet. We'll probably move away from it shortly so we have more flexibility, but for now you can visit the document directly: http://edit.submit.co/
Disclosure: I'm the creator of Submit.co