And how you need to accommodate your business to work with it, learn a proprietary too, do training, ask for new features or bug fixes and hope at some point they will be implemented, or create workaround them, all while paying each month a hefty fee. Oh and pay somebody to tackle negotiations when the contract expire comes in, or throw away everything and spend even more human hours to migrate off it when the price is really draconian.

But hey, it gives a living to many HNers so it's good!