I don't see a problem to post other people stuff as long as you give them credit. This is a very old rule when you work with other's intellectual property. So, please don't give up. The choices you make what is interesting to you is something of you that you share with us.
You cannot post other people stuff in a commercial use.. you need to have license. Is very clear!
it's a new paradigm. clearly you don't get it!
go back to reddit and facebook troll!