If I were creating competition, I am not afraid to play the game and I'd play it fair. However, I don't believe I am. Why? There is a vast sea of opportunities, gigs, jobs, and contracts in the writing world. It's not humanly possible for me to have every writing task to myself, nor would I desire to.
Aside from that, I am wise enough to know that every assignment is not for me. I don't know everything there is to know. Also, each writer has their own style. Why take on a project I know I can't do when there could be someone else better suited to it and who may need it more than I do? Instead, I could refer a good writer and move on to something better suited to me.
I have always believed in helping others, no matter the situation. Whether in my career or in every day life, if I see someone who needs help, I'm going to provide it if I have the means. If you knew a secret that could change the whole world for the better, would you keep it to yourself? Of course not - at least, I hope not.
No, writing advice is probably not going to change the world. However, if I can offer some guidance that can help change someone's perspective or career for the better, you can bet I'm going to tell them. One small piece of advice or word of encouragement could be all that is standing in the way of someone living their dream. How do I know this? People have given me that kind of hope and assistance. Were it not for fellow writers pushing me and offering me advice, who knows where I'd be today?
So, am I creating competition by helping others succeed? Does it really matter?