So I keep seeing people argue about whether we are competition or not and the truth of the matter is...in terms of for jobs and for money...sure we are.
But we aren't "Comptetitors" like say...USCellular and Tmobile...or Walmart and Kroger. We're not that kind of competition at all. We don't have to glare over our shoulders at eachother and shun those that are successful. In fact, doing so is harmful to you in the long run.
Rather, see it moreso as being friendly competition for a school fundraiser, or the kinda competition that you have with coworkers in an office setting. You're not going to be knocked out of anything by their success!
Plus, being kind to those who have what you want FOR YOUR FUTURE is called networking. You want relationships with artists doing better than you. Genuine ones, not "PLEASE SUPPORT MEE" ones. Because, wow, they can help you if they actually know who you are and like you.
Edit: Also, comments on these big name comics that show you are a genuine and cool person are free advertising. Literally your art is always there for other readers to see you don't have to link anything. Think about it. You're passing up a way to network AND get eyes on yourself out of some strange moral code that doesn't matter.