Hijacking this thread to post some Instagram tips:

> Block Login Popup:

Sometimes you want to scroll to the bottom of giant instagrams without logging in.

Add to uBlock Origin filters:
> instagram.com##.RnEpo
> instagram.com##body:style(overflow: auto !important)

> Search Tools:

https://mulpix.com
http://gramfind.com
https://gramuser.com
https://toptager.com/ (don't include "#" in the search)
https://www.combin.com ($10/month)
https://phantombuster.com ($30/month)

> Web Viewers:

https://tofo.me
https://pinsta.me/

NOTE: Even if a search tool says the user doesn't exist or have any posts or followers, they may still exist and have posts and followers.

> Research:

https://www.socialinsider.io/social-media-studies/Instagram-Hashtag-Study.pdf
https://sproutsocial.com/insights/instagram-stats/