I've always thought we humans have a large capacity for empathy that allows us to care for more than those we have direct, face to face, contact with. Although I'm not sure this is true in the "virtual world" where our interest can be rather stretched by the amount of people we are "in touch with" via the web. Case in point, my blog is frequented often enough but few feel the need or have the time to offer any encouragement, by way of comments. Luckily I am, and we are all basically doing these blogs for ourselves otherwise there wouldn't be much of this so called.. "Virtual Global Community."
I don't want to shame anyone into writing "comments," just making an observation. I and I suspect most of us keep up our blogs because they have a "purpose" (although this may not always be clear, to my readers) and they help us in our quest of "mastering" our sport with the added value being that they helps us master other aspects of our life as well.
I really consider myself lucky and I'm thankful that anyone at all would even bother to look in. So if you just want to "lurk" feel free ;)
Have a look at this video it's interesting and it explains, well, a little of what I'm talking about.