There is no legitimate reason for a social media platform to employ this much obfuscation.
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They won't be betting that this stops that entirely, but it adds a layer of friction that is easy for them to change on a continuous basis. These things are also very good for leaving honeypots in where if someone is found to still be using something after a change you can tag them as a bot or otherwise hacking. Both of those approaches are also widely used in game anti-cheat mechanisms, and as shown there the lengths people will go to anyway are completely insane.
I'm guessing a lot of them use reCAPTCHA, and according to this comment, reCAPTCHA uses an obfuscated VM: