I'm just gonna say that it seems ridiculous to help someone you're competing against at the highest level since this a competition and that goes completely against the competitive spirit of the game.
Advancing the metagame is a fine goal and all but that'll happen regardless.
First of all, I have no "feelings" about this topic either way, but it is interesting and discussing topics like this are entertaining and enligtening, i hate when people (not you pp, just ppl in general) start to get offended or feel like someone is being abrasive just because they are offering a different point of view than the one they currently hold (as Trahh is doing, and multiple people getting butthurt about it)
Secondly, i have to chime in that i disagree with both these statements.
This first paragraph, i dont see how it goes completely against the competitive spirit. "competitive spirit" as I imagine it is the thrill of beating someone at their best, when you are at your best. If you happen to know something tht could potentially increase the capability of the opponent, but you are without the information intentionally, then i'd say THAT goes against the "competitive spirit" because you are effectively
intentionally limiting competition by preventing your opponent from being able to perform better.
Its no different than if i play a complete scrub in melee, and he asks "how do oyu move so fast" but i refuse to tell him about l-cancelling and wavedashing, just for the sake that i can continually beat him. Its not "competitive spirit" to hold him in his current state of ignorance. True competitive spirit would be encouraging him to rise his skill, and then beating him anyway.
the second statement i disagree with simply because I personally dont see how "the metagame will evolve anyway", and you didnt really explain how.
Please note that I have nothing personal against your decision, I'm just offering ym view. I actually dont really mind either way if you respond to this, you don't need to explain yourself, and I certainly dont hate you either way.
Also, I understand the reasoning that this is a competition and its not your responsibility to make your opponents better, however not doing so on the basis of "competitive spirit" is flawed in my eyes, but I have no qualm with the actual decision, just the reasoning behind it.