I have had similar thoughts about early posts and upvotes and downvotes making people more unlikely to post even slightly differing opinions for fear of getting a negative number or something silly like that, but this seems like an issue with the platform in general and is only worse because we have a smaller community on Lemmy.
There are legitimate reasons for not wanting to use Fdroid and their builds are apparently reproducible, not sure what you mean about not being fully FOSS either. https://signal.org/blog/reproducible-android/
How exactly is Signal anti-FOSS? This might have been a problem before (the article is from 2021) but I checked the Github link in the article and the server was updated 18 hours ago with frequent updates this year alone. I also find the source of funding argument to be pretty flimsy. Though I do agree with the conclusion that federated alternatives are better for privacy. For my personal threat model Signal is fine for me.
No hate though, it’s an interesting read, I’d like to see more discussions like this.
I think you missed the point.