I don’t follow. What do you mean…?

They mean that a comment made now could come back to cancel them later.

People who disagree with your politics may try to dox you and get you fired.

You can't be sure something you say today won't be used against you tomorrow. Cancel culture is growing. Best to be pseudo-anonymous.

Naming names of dissenter or others who wish to up-end the status quo. So, you don't what identifiable information out there.

Good thing my account is fully anomym-ized

I usually fuzz true details (am I 40? am I 47? Do I live in Chennai? Mumbai? Thailand?) about myself when sharing an anecdote here. Or eventually create a new account after I feel like I've shared too much on one. Pretty paranoid I guess.