In this challenge, the first thing I do is join discord server, and find unpuzzler7
Easily, I searched the name in discord like this
First, I checked all the message from unpuzzler7 or mentions unpuzzler7. But there is nothing.
Then, I clicked on his name and see Fliker's link
Clicked on the link, I saw 2 picture
According to the description, the challenge want me to find the location of the pictures (of course the sky picture) so I thought this was a GEOINT challenge.
But after a while of searching, I found nothing =))
So I turned back to Flicker and then I found this
Flag: ictf{1mgur_d03sn't_cl3ar_3xif}