[CM30]

Audience.

Twitter has a more left leaning audience than many social media platforms, hence its creep away from tolerating anything right wing or centrist.

Facebook's audience is predominantly more balanced in that regard, with a larger percentage of conservatives using it in some way (especially those in older generations).

If they tried to go the same way as Twitter or Reddit, a large percentage of Facebook users would be absolutely pissed, and they'd likely lose a lot of traffic.