Based on that description, action gamblers are energetic and yet they have low self-esteem? I think that contradicts the entire description of it when they're action gamblers, energetic and yet they have this problem of having low self-esteem.
Some characteristics of low self-esteem are:
thinking that other people are better than you, thinking that you do not deserve to have fun, blaming yourself when things go wrong, focusing on your negatives and ignoring your achievements, joking about yourself in a negative way, saying something negative and critical about yourself.
I do not think if someone do not have some of these characteristics, that the person will be energetic. You are right.
What OP posted are just something not to consider.
That's why I think that it contradicts to the description on what OP has given about the action gamblers. They shouldn't be low self-esteem gamblers as they are active and energetic. And whenever there are these types that differentiate the classics of gamblers does have their own reference. But I think that they've just made it for someone to have something to do out of boredom. But anyway, I respect all of these classifications if that's too important to them because still, I don't think that there's a need for you to classify yourself.
It's just like the old times when we talk about it for being an active gambler or a passive gambler. Someone who does it for fun and does it for the money. So, all of those stuff and descriptions that we all know, there can be changes over time based on the trend in the gambling industry and based on the terms that we've been using. But as I have said, there's not really any importance whether to get classified as one or not.