Dmania, the Steem blockchain dApp created by @zombee, is going to be shut down in a few days(You've notice the post itself has been downvoted into oblivion by @berniesanders and his bot army). After some controversy over @zombee's voting methods on the platform and over the worth of meme content it looks like he's decided to call it quits. More in the video.
Other Steem Meme-fueled dApps:
https://www.decentmemes.com/
https://memeit.lol/
My video is at DLive