Here’s my 2¢ as the OP.
I never said you are not welcome, only that your particular post was dismissive of the spirit of the thread, rather than contributing to it. The point was to ask people to posit moral standards that do not derive from a deity, which you feel would benefit humanity if everyone followed them. It is asking for individual opinions of this. It is asking for “your atheist 10 commandments,” not asking, “What moral code would all atheists agree on?”
Your post, OTOH, says that it doesn’t even make sense to ask the question. As evidenced by the many thoughtful answers posted in the thread, apparently some people do think this question makes sense.
I would readily accept someone who wanted to discuss the premise, but the post is summarily dismissive of the premise.