I don’t think it’s a problem until it interferes with your ability to do more important things in your life. If you have the time and capacity to explain why something is incorrect on the internet it can be beneficial for many of the ways you just outlined.
However, if you spend excessive amounts of time doing that, or prioritize it over the needs of the people you value in your life, it’s a problem in your life that you should probably address.
I don’t think it’s a problem until it interferes with your ability to do more important things in your life. If you have the time and capacity to explain why something is incorrect on the internet it can be beneficial for many of the ways you just outlined.
However, if you spend excessive amounts of time doing that, or prioritize it over the needs of the people you value in your life, it’s a problem in your life that you should probably address.