I don't think so.

You posted a story idea and now you actually are thinking about using it yourself. I don't see a problem with that.

There might be certain challenges that you shouldn't write if you posted it but this is a general challenge.

I guess we'll just have to consider your challenge to function as a spoiler for your story.

I think, therefore, I get bananas.

When in doubt, think about time travel conundrums. You'll confuse yourself so you can forget what you were in doubt about.

What's the difference between ignorance, apathy, and ambivalence?
I don't know and I don't care one way or the other.