You are blessed if you have never spent half-hours of precious mental energy pissing into the wind for a back-and-forth stalemate comment thread.

I'm on the train right now, I probably spent five minutes phrasing this comment (and if it feels like five it was likely ten) meanwhile I had a book I was going to try and finish and instead I squandered the ride on Internet junk food.

So to answer your question: yes, but no.

I've certainly spend half-hours of precious mental energy writing a comment because I was having fun writing it. Like watching TV from before, perhaps cleaning the house instead would have been a better use of the time, but It is what was enjoyable in the moment, and sometimes you can allow yourself to have some fun doing arbitrary things. I don't really see that as being dumb, but to each their own, I suppose.