Indeed. I think it fulfills some sort of social need to read/hear back my own thinking in slightly different and often more coherent words. It gives me a feeling of being understood, which is of course sort of artificial when writer of the text is someone who doesn't even know who I am.

It feels sort of related to the technique therapists seem to use; based on patient's rambling stories, they summarize how they feel in much more succinct way than they themselves would have been able to, which makes them feel like they are finally being understood, which often results in tears.