I understand, being a cis-het, I may have introspected this in the wrong way. So if I say something wrong or insensitive, please don't bash me for that, my queer folks 😅 I am willing to learn too. I am only mentioning things here from my pov. twitter.com/chumma_oru_acct/status/1603259230793781248
To answer ur ques, I use pronouns in my bio, because I believe it normalizes a non-binary person to mention their pronouns without any fuss or thought of 'expecting special treatment'
Say, hypothetically, if everyone is mentioning their pronouns, then it will become a normal thing to expect people to ask for other people's gender, before assuming it based on how they look or their name.
Since, that scenario is not achieved yet, if a queer person sees a profile with pronouns added, they might feel safe to interact with them knowing they might be an ally. Yes, putting pronouns in the bio seems like a small change to make a big impact.
But it at least helps in not isolating the non-binary and other queer people among the majority of cishet binary people. Considering the fact, those queer people are socially oppressed and are still considered a sin in many countries and beliefs.
But it is a completely different scenario in putting one's caste name. It begins to isolate a person. An oppressed person will always find it as a red flag seeing a person proudly putting their own caste name.
To put it in simple words, putting pronouns in the bio, provides a chance of uniting people of all gender. It creates a safe space. But putting one's caste creates a sense of separation and it upholds the already existing hierarchy.