>>mikece+(OP)
I almost skipped reading into this article because I love Signal and it's mission (and their rare commitment to stick to it) and would have known it's good. Yet, the details on expenses and infrastructure was a good read. $1.3M/yr for
temporary storage! $6M for verification codes during sign-up!? Toll fraud!? GOOG & FB data center spend, data breaches from GOOG, MSFT, et. al 50 full-time employees vs 3K or 4K for similar apps! All interesting.