I still laugh at how 4chan doesn't understand what sage means.
If only I knew moon so I wouldn't have to spend time on a board that imports foreign concepts and then DOES IT WRONG all the time.
Using sage as a way to "insult" someone's post or thread is just completely wrong and a retarded misuse of a good feature that is so popular in sites like 2ch and Futaba. Fuck, iichan and 4-ch do it right. It's just 4chan and 4chan's lame knockoffs that fail at using sage.
The true meaning of sage means that YOUR POST isn't worthy enough to bump the thread. It's ironic, because you think that you're insulting others while you're just, in fact, insulting yourself. Yes, sage can be used when posting a derogatory comment in a thread that you don't want to bump, but posting with just the word "sage" accomplishes nothing but contribute to spamming the board. The trend of replying with the name of a tripfag and sage is even worse, as it accomplishes nothing and only serves to increase the e-penis of whoever you're "attacking".
The sage feature was never meant to serve as an implied insult or general disagreement! Why people started using it that way is beyond me. There are plenty of reasons why one would choose not to bump a thread with his reply. For example, bumping threads with stupid one liner replies should be discouraged and those people should be coerced into using sage instead.
I want to use sage, yet I almost never do it on 4chan because people will jump on me thinking I'm insulting their post or something.