Hoping Iconduck can fill a bit of a void when it comes to open source contributions. I'll be very consistent with it, adding new icons every week, improving the searching, and the design.
We deleted everything we got from them. We got a second letter when we reached independently to some authors with CC icons, got their explicit approval and got their icons from their site. The same icons were also available on the noun, and I guess they thought we had downloaded them there. This time we answered back and never heard from them again.
They seemed pretty protective to me, and I would not recommend touching their site if you want to get a CC collection of icons without troubles.
Btw, Iconduck looks dope :) congrats!
I remember reading a little while ago about scraping and what is/isn't allowed. I find the legal/theory of it pretty interesting, but also irrelevant for Iconduck: I like icons and want to spend time bringing together as many open source ones as I can, while practicing some of my design skills.
Appreciate you checking is out. Flaticon is a gr8 product.
So the rule is, I'll only include icons that have licenses that specifically allow redistribution and attribution, and I'll almost always link back to the repo. The exception is some sets aren't hosted through GitHub or GitLab, so I'll link back to their respective website.