You have every right to offer a suggestion, just as we have every right to counter your suggestion. You said it yourself, this forum is for ideas and feedback. You posted an idea, we gave feedback. Our feedback happens in this case to disagree with you.
Don't make the mistake of assuming that because we disagree with you, that the suggestion does not have value. This is a common thing I see on numerous forums when people offer up an idea and people dislike it. Just because you didn't get the answers you were wanting/expecting doesn't me we are just dismissing it. We read it, we thought about and came to the conclusion that we did not think it was an improvement and stated our opinion as to why, just as you did when you fell the store price system is currently broken.
So please don't construe our disapproval for your idea as saying you have no right to suggest it because that is far from true.