pull down to refresh
it will ignore names that have a dot after the "@" symbol so wont confuse with emails. its been quite reliable. uses iOS OCR apis which are quite good. unless the handle is very poorly written, it should read it fine. You can reattempt the scan by hitting "scan again".
Wait so you can resolve a spaces handle like grace@key or stacker@news and any @ handle like a qr code by taking a picture of it?
How the heck is that possible? Is it easily confused, what if it was an email like grace@key.com does the app know the difference?