This is the millennial pink of fonts.pic.twitter.com/ogr9xreQaV
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
Yup. Half of all startups use a variation of that font it seems
it's called recoleta. bought it 2 years ago and then started seeing it all over the place so I scrapped it. myfonts has it on their most popular section so that might be why.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.