But communicating with them on internet forums does? Social interaction is social interaction. The only advantages of internet forums are that you get time to formulate your thoughts and don't typically have to worry about consequences. Put another way, they can compensate for one's lack of social ability.
I don't mind legitimate introverts, it's people bullshitting themselves that make me facepalm.
You missed the biggest advantage of internet forums: you get to interact - at least by sharing opinions and knowledge in text form - with people you might not in person.
Most of you might not be the kind of people (whether good or bad) I might interact with on a daily basis or even in a long period of time or lifetime. In "real" life, my circle of friends, family, colleagues, acquaintances, etc might see large and varied to me. But in reality it is very, very small as I don't have contact with people from different regions of the U.S., people who are into certain niche interests, people who are very knowledgeable about certain issues or areas of expertise, people from different countries, etc.
I might be an introvert, but it doesn't mean I don't like talking to people. Actually, I love talking about all sorts of things and can readily get into a discussion with different people. But I'm not quick to make friends necessarily, and I don't
always want to interact with the friends that I have - sometimes people are just annoying and have nothing beyond small talk or gossip to discuss, which I hate. Forums challenge me more intellectually (and sometimes frivolously... okay often frivolously) than my regular crowd might.
Even looking at social networks, your average network of friends may not be the most stimulating, even if you like them a lot. I think that's what forums offer: different views (even if it's dissenting, it can be useful), access to knowledge, and opportunities as well.
Even take this thread for an example: I would get a lot of blank stares or about 3 sentences worth of conversation if I tried to engage my family or friends with this topic. Or a lot of other topics discussed on ATOT. And while someone might say, "why not make some new friends in real life who you could"? Well, frankly I don't have the time to form a panel of people or discussion group at the moment, and even if I did it wouldn't be a top priority. But it's pretty awesome that it can be easily done over the internet.
So long as you aren't using the internet as your
sole means of interacting with your friends, family, or the world, I don't see the problem. The balance you want to draw up of real-life interaction/socialization to internet communication is up to you.