The best hack on github issues I know is the trending-repos repo. Just subscribe to the issue of the technologies you care and you'll receive a daily/weekly email with the most starred repos for that period:
Think of this as the software version of graffiti.
It is an artistic and creative way to shorten urls, but likely won’t exist forever. As long as it does though, we can appreciate the art for what it is.
Indeed, especially with the recursive link created by someone else (nlsn.cf/6)
GitHub does have a 60 calls per hour API limit so I don't think it affects them as much(?) That being said this project is meant to be for fun and definitely not recommended for production purposes HAHA
I've seen quite a few uses of the issues page as a discussion forum too. I certainly wouldn't consider any of it "abuse", however.
I wonder if anyone has made this observation before in regards to such things: "Anything that can be used to store arbitrary data, will be used to store arbitrary data."