When you upload a meme you have the ability to have it "featured" in various streams depending on the content of the meme in question. If a meme is featured in a stream that means it is more likely to be seen by more people, though if a meme isn't seen in a stream it can still be seen by a broader audience but is far less likely to be. A stream moderator approves requests for being featured in a stream, though if a meme violates site rules or deemed to not fit the category of the stream than it can be rejected or unfeatured after it has been previously approved. In this case the meme was previously approved to be featured, and then got unfeatured.
You have given me some things to think about, apologies for the initial hostile response. I explained my initial intended message, but I am now wondering if a reasonable person can misconstrue this? Like I said this is the first time I have had any memes I created get unfeatured and I have created a lot of controversial memes. It is possible I may create something an alternate meme that is hopefully a tad more clear.