Here's the deal about Instagram profile pictures:
Trying to match faces and usernames? Good luck looking at those tiny, pixelated photographs on Instagram. Perhaps you want to reconnect with someone you met on your travels, but their profile photo is a foggy mystery. Instagram's decision to keep profile pictures small and unclickable is inconvenient when you need a clearer look to engage personally or professionally.
It's irritating when a fascinating account appears and you can't figure out who's behind it. Because of these limitations, obtaining a good look at profiles is practically impossible.