It’s almost as if this process is like a download of information straight to their mouth—they are not necessarily aware of the new ideas being formed before they say them, and are fully realizing their point as they talk. 
They can use this to their advantage when they have a problem. Talking it out with a trusted advisor or friend may help them realize new things about the situation which helps solve the issue. Those who haven’t fully developed their “filter” should be aware of their tendency to verbally process information in this way and be careful with what they talk about and to whom.

For example, when someone reacts poorly to a great critique that they give because they know it could help that person improve immensely, they might think, “If I wasn’t being effective in that area and didn’t know it, I would want someone to point that out to me!” They might not know or take into account that others don’t operate like they do. Others may view this version of helpfulness as hurtful. 

If they are uncomfortable with this softer side of themselves, they will probably ignore it, which can lead to ruthless and cold behavior towards even those they care about. They should be wary if they have a tendency to ignore their morality and emotions.