I think the author is being serious.
http://mobile.the-scientist.com/article/47646/opinion-an-ethical-code-for-conferences …pic.twitter.com/BemZkYngY9
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Same with preregistration and registered reports too.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.