If you choose to enter into a discussion on this site and you don't have the time, or patience, or are just too damn lazy to defend your position on any given topic that is PERFECTLY FINE. I'm not going to bash you over the head about it. However, please don't TELL ME that I'm "wasting my time" or that the person I'm trying to convince, "will never learn." or that some creationist/believer/whatever "Is just too stupid to get it."
We don't change peoples minds by dismissing bad ideas. We change minds by defeating bad ideas.
Yes, I know, it takes work. It takes research. Sometimes you have to spend a whole hour breaking down one assertion that the other party just made up off the top of their head. But the great thing about this site is that it saves your work. Once you've addressed that bad idea you now have instant access to it. If it ever comes up again in another forum or in everyday speech you now have a resource you can go directly to for a rebuttal.
Also, when two parties have conflicting ideas both people think their right. And they're both going to continue to think they're right until they have a reason to change their mind. Just dismissing the other person's argument out of hand is not going to get them anywhere closer to the truth - and it's not going to get you any closer to the truth. Go out, find reliable sources that support your position. Go out and get the evidence you "know" exists and bring it into the discussion so everyone can see. And if you can't find reliable sources for your position and/or you can't find the evidence you "know" exists - then consider you may not be on as firm footing as you thought. Everyone is wrong from time to time. But it's only by reason and evidence that we ever realize it.
Most importantly, people change their minds in private. It is extremely rare that you are going to find an individual that is going to admit they were wrong on a public forum. Sometimes it's because of pride. Sometimes it's because it just takes a while to process the information. And, even if you don't change the mind of the person who disagrees with you, there's a good chance someone else reading in the thread may change their mind. But that can ONLY happen if you're willing to do the necessary work and give them reasons to do so.
Once again, if you don't have the time to do that - fine. No problem. But PLEASE, stop writing people off. And stop telling those of us who ARE willing to make and effort - and ARE willing to do the leg work - that we're "wasting our time." If the people on this site were incapable of changing their minds they wouldn't be here in the first place. They'd be sitting in a KH sucking down the WTBTS cool aid.