Part of the problem is that downvoting is used to express disagreement. We have this discussion often on HN (perhaps too often):
http://news.ycombinator.com/item?id=117171Note: the following unexpectedly turned into a bit of a rant, with a dose of whining thrown in:
Many of us "old-timers" think that downvoting without giving a reason is mostly bad form (the exception is for a rude or obnoxious comment). I've personally noticed an increase in this behavior.
I believe that doing so decreases the user experience. I've had plenty of disagreements over the years and have almost always learned something from them (even if it just required me to do a bit of soul-searching). Posts would be painstakingly composed (one of the big complaints we had was that the post-page timed out while we were composing- so we had to result in using a separate editor to compose, then click "reply" and copy-and-paste.
But now-- why bother? I've been around a while. I'm on my second (third?) career. Not a hacker extraordinaire by any means, but I'm well educated technically and have maintained my involvement with a broad array of interests (I like to learn new things). I've seen some things, and I'm willing to share- and even be challenged in my own conclusions about them.
But when I make a post that the "average HN-er" (age 25, so I hear) may not think is very smart and I immediately get downvoted with no reason given, it sends a signal that HN has changed in a very dramatic way.
The site is far less valuable than it used to be.