Today I asked someone on Instagram why she had this weird link on her description box. She told me that someone had told her that it makes the profile more “visible.” So being the curious character I am, I thought, what the heck I’ll test it as the link does not contain Javascript and thus is not some kind of XSS which would risk my account. I copy-pasted the link into the “Website field” input and pressed submit. After that, I got an error and some message about spam. LOL

So nothing happened at first but then a friend sent me a screenshot..



Apparently, the effect is that friends that were previously tagged in pictures, get re-tagged.

Could anyone reverse engineer this, and explain why this happens?

This is the link

l.instagram.com/?e=ATN4xKdZJeSGE84k8cY5-vI-A79q_P2Pwqc4vco0ntzudNW724ARpsBc-L9yyQ&u=http%3A%2F%2Fwhat.what.what.what.what…