They’re dreaming if they think any Redditor is going to want to transparently tie their IRL identity to their content.
Like MLK said but shoehorned into the current context: People want interact and be judged based on the quality of their content, rather than the knowledge of their character/identity which Reddit will absolutely fucking sell to the lowest bidder and infinitesimally so.
Bonus points: you know the moment they get a request from law enforcement, thats all becomes public knowledge and it takes far less than the entirety of most Redditors ourvre to convict them of any number of real or thought crimes.
Not exactly fertile knowledge-sharing grounds.