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
This is a very good point. However, nothing can protect you against a NSA-level adversary. Signal is designed to protect you against Google or Facebook.https://twitter.com/RealSexyCyborg/status/1347455529241612294 …
The NSA aren't magic unbeatable adversaries though. I would say Precursor will be pretty tough for the NSA to find a way to backdoor.https://www.crowdsupply.com/sutajio-kosagi/precursor/updates/crowdfunding-begins …
(as a TL;DR, the hardware is user-verifiable, and the FPGA-based approach makes it infeasible to build universal backdoors into the main IC)
It's an adversary with unknown capabilities and 10B yearly budget. You can replace NSA with any other infinite-resource adversary. I.E. Signal is not invulnerable to exploits.
Sorry, I've been side-tracked by the Brewdog beer mat, and now I'm thirsty!
First thing I noticed too 
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
