PH is a website that program managers from big companies such as Microsoft and Google go to get ideas for new features.
I recommend against post anything to PH unless you have patents, or a big marketing budget, if not your idea will just be copied by big companies before you can get the word out about your product.
Do you have any examples of this happening? How many products on Product Hunt do you think are patent-able?
My startup was posted on PH, and many years later we're quite successful. We had $0 budget and it was just me at the time, and it worked out wonderfully.
That's a pretty cynical view....besides, big companies would take months/years to to copy an idea - even if it's a good one - and by then the market has moved.