You can built it yourself.
"The thesis essentially being, if you aren't able to build TextSecure from source, you probably aren't capable of managing the risks associated with 3rd party sources."
>The only secret is to [really] begin.
Nice one Moxie ;)
I didn't find his tone to be arrogant at all. You're conflating arrogance with correctness, and though many people on the internet use both simultaneously, they are two separate things.
[1] - https://f-droid.org/
What was it?
https://github.com/WhisperSystems/TextSecure/issues/53
You'll find a more interesting discussion about the reasons for not distributing TextSecure through alternate repositories on issue 127 though.