I think you just gave me the idea for my next contest :0)
Interaction is indeed one of the important keys here on SteemIt.
If you can make an insightful and valuable comment (which you can only do when you read the entire post), it is appreciated by the author. It may not result in an upvote on your comment, but if you are consistent, people will remember...
And that's how you can achieve that other people will notice you.

There's nothing wrong with posting a comment that is a little controversial, like saying that you disagree with the author. As long as you can provide valid arguments that explain why you disagree, such a comment might end up as a very interesting conversation from which both parties will learn, as wel as get to know each other.

Have you thought about using the things you mention in this comment to create an article to post on your blog? I think it's important that the knowledge you acquired is shared, so newcomers can learn from it directly. It would be a shame to let this information be just a part of this comment stream. The things you say are too valuable for that. I suggest you make a post out of it, so it will reach more people, and it can help others who are still learning the ropes around here.

Making posts telling others about the important things you're learning along the way, has 2 big benefits:

• If you forget about it at one point, you can search for your post and use it as a reminder
• You're passing on the knowledge, which is important in times like these when thousands of new people sign up for SteemIt every day. It is important for them to have references that tell them what to do or what not to do on Steemit.

Every lesson that is passed on will make SteemIt a better place!