It seems you misread the comment, no? There's little gain in being this standoffish, especially when your interpretation is off.

They're obvioulsy not saying that ideas are worthless, period - They're saying that ideas alone don't go anywhere unless you execute them. Furthermore, it seems they're here to share ideas, not to execute others.

I didn't used the expression in a literal sense (which I tried to state but maybe I didn't do it well enough). For me "ideas are worthless" represents the opposite of the mindset where people get secretive about their ideas or not wanting to give them away because they are afraid that someone will make good money with it.

I clearly care about ideas if I want everybody to share theirs. I just want to do it openly and freely without people thinking that others will steal them and make advantage of them.

Grandparent is right, though; everybody starts out as an ideas-first person. That's because having ideas is really easy and anybody can do it.

It sounds like you want the validation and esteem of your peers on the basis of your ideas. The cold reality is that having an idea does not at all entitle you to a reward; other people will also have your idea, and you'll feel like they have "stolen" or "made advantage of" your dream.

Many ideas are counterproductive; if they were carried out to fruition, they would either need to be retrofitted to the point of being a different idea entirely, or consume too many resources in proportion to the resources being saved. It is completely reasonable, therefore, to insist that ideas are not enough and that prototypes are required before designs can be considered for production.

Finally, consider a Kantian perspective. We can't all be ideas-first people. Therefore it'd be a lot more moral of you if you developed some programming skills.