That is very true, and I myself don't always leave long comments, especially if I already know the writer.
Sometimes short n sweet is the best, it's just when people copy n paste the same answer on 100 articles, it's just spam.
Also, sometimes a; great article man! is all that's needed, I'm not dissing short replies, just lame ones, I've read long lame ones as well, that just wanted to push the agenda of the person leaving it.
For instance, I put out an article on The Mandela Effect, the other day; and someone started preaching the gospel, and leaving links to her religious posts. That was the straw that broke the camel's back for me :-(
Amen :-P
Lolz :-)
Cg