No, you're not alone. I "know" some people better than others here, and even with those I know, I don't comment all the time. Often, it has to do with the amount of time I have at the moment, and if I feel I can make a significant contribution to the thread. Don't feel bad if you don't comment every time. I send hugs now and then, but I don't do it every time, especially if many others have. It's not that I don't care or wish the person well. Not only do I spend too much time online and need to reduce it, but I'm dealing with a couple of problems online, plus a bunch of crap going on in real life. So, don't stress yourself out if you don't post all over the place.