It depends on what the person has joined the forum for. If a newbie is here to learn and grow, guidelines and suggestions can do a lot for them because they will read them and learn something from them, but if someone has joined the forum with the intent to earn money from here either through signature campaigns or bounties, they would barely focus that much on what others are suggesting because their minds will be crowded with thoughts regarding how they can grow their rank and start earning money.
It's ethical for us to provide assistance and help when someone asks for it, whether they really need it or not isn't our concern because we can't know that at first. So, we do what we are supposed to do and let them do what they are supposed to do, their success in the journey depends on how they travel on their way to success. One wrong step and the pathway changes towards failure.