Depends on what you expect and what you want to use. Some features are definitely hit or miss, others are great. Others are great in theory, but not yet properly implemented.

I migrated my family and friends instant messaging there years ago. Back then the e2e was bulky ( no cross signing) and but voice and video was slow and unreliable.

All those got fixed, and now it’s very convenient to use. And it definitely is unbeatable in terms of transparent security.

The community features and “talk to randoms” aspect I never really explored, so can’t say much about that. Never had a need for it. Old reddit or Lemmy serves that itch better for me.

What makes you think targeting would be an issue? The idea of kinetic orbital impactors is to not rely on an atmospheric glide for reentry, but to brute force straight through the atmosphere to maximize impact velocity and thus energy.

This means you speed up the impactor tremendously, e.g. with a rocket, and ram it straight down. The atmosphere is only 100km thick, and only the last 30km even have any meaningful density to offer noticable resistance. Yes, the impactor will create a massive plasma plume, but it won’t even have enough time to heat up itself, much less ablate or disintegrate before impacting the ground.

Targeting such a device would be extraordinarily simple with incredible accuracy.