Their leadership team made about 5 million dollars per year in 2022, with about $500K/year compensations for most of them. Some comments here suggests that those compensations have risen sharply recently.
Perhaps consider whether this is a good place to donate. And also, it’s so shitty that we were conditioned to think that every service is “free” of charge. In an ideal world, Signal could fix all of these problems by firing 80% of their C-team and instituting a modest subscription fee. But then 90% of their users would just fuck off to some place that is “free” but makes much more money from selling their data.