Normally, I don't think that I will be concerned with something like this, but recently this "newbie" line has been popping up too often at so many threads that it's starting to irk me.
What I'm taking issue with is, if you are unsure or don't know about something, then why write it in the first place? If a newbie really wants to learn about something, all he/she should do is ASK. Not make comments about something and expect somebody else to come along and correct the comment. What if nobody comes along at all? Wouldn't it be misleading to the original thread poster and contribute to his/her confusion?
Even for newbies, I think there is still a need to post and make comments responsibly. I'm not discouraging newbies from participating in thread discussions, it's just that don't let "I'm still a newbie, and I'm still learning..." become too convenient an escape line for avoiding responsibility for your comments.
That's all from me... just a submarine coming to the surface to recharge batteries.