Writing giant paragraphs, calling your audience out and telling them why they've been richardheads (in nice words, but the meaning is the same) is not going to convince anybody of anything if you're actually serious about wanting to inspire deep change in people; it's just going to start a nice big argument and nobody is going to "fix" their opinion at all.
You should consider appealing to the audience, rather than scolding them as you did, because you came off as a pretentious and annoying forget-knuckle, and I wouldn't want to support or agree with anybody who speaks like that. Keep It Simple Stupid, Think Before You Speak and Show Don't Tell.
I'd much rather write a paragraph of real information than spreading my thoughts out in several sentences throughout the thread (Of which, as you said, will die eventually), you know? This isn't an organized sounding board where people can fairly share their opinions; it is, at the end of the day, a forum.
I fully agree with you in that people do not enjoy being scolded as a means of trying to change their mind; it's similar to the effect that yelling at or insulting someone would have, in real life.
With any audience, however, you can only truly appeal to the side that supports your viewpoint. To the opposing side, you can (as I did) respect their opinion, yet still disagree in a kind way. That is the most you can do in that situation.
From the process of this thread, though, and your first response, it is clear that many of those participating in this thread are not taking the subject matter seriously (It's the BLF, as you said.), so for me to act as if I would be treated with the same respect that I (still) gave to others would be naive of me. Even with you, telling me to get my head out of my ass and to stop being an annoying forgettard, at first-- with that level of respect given from you, this debate could not have progressed positively from the get-go.
I really do respect your viewpoint, however it may seem; I am just presenting to you what I believe and have experienced from my own life thus far. There are, of course, no hard feelings surrounding any of this.