No reason at all. I'm just surprised that more people aren't doing it online. Probably would've saved a lot of time and I'm wondering what percentage of backlogged applications have the barcodes. The only thing that would give me some pause is that the online generated forms and the ones at the post offices have 2019 as their expiration dates, but it still seems like they're using them. Meanwhile, the new DS-11 PDF has 2023 as the expiration date. I'd still go for the one generated online with the barcode nevertheless in the hope that the State Department doesn't suddenly change the forms or mandate the new ones by the time I'm (hopefully) able to apply.