>when clearly they add no value at all to the businesses who use them or their customers.
They do add value. Product management is about two things: product discovery and product delivery. Canny increases your chances of doing the 1st one right. That is the most difficult thing to do: finding the right product to build. Canny allows you to get direct feedback and learnings from your users in a very simple way and most importantly, in a cost effective one. If you look at their pricing page, you might get scared, but believe me: building the wrong product is even more expensive.
They do add value. Product management is about two things: product discovery and product delivery. Canny increases your chances of doing the 1st one right. That is the most difficult thing to do: finding the right product to build. Canny allows you to get direct feedback and learnings from your users in a very simple way and most importantly, in a cost effective one. If you look at their pricing page, you might get scared, but believe me: building the wrong product is even more expensive.