I think the suggestion was quite polite and honest - I was going to post too that if your hardware doesn't change, you don't need every upgrade. Not sure why you felt to go defensive here.
I said it on the other thread, but I can tactfully say it again: lifetime licenses for software/products that by their very nature will require upgrades is hoax. You either get hugely inflated price, or the business model is not sustaining, but rather marketing hoax. Microsoft and Google could do their "infinite cloud storage" for several years, until they no longer can - that was to get users to their storage and platform.
If this is getting so fueled up, is it because HWiNFO is providing some unique feature, that nobody else is - or at the level second to none? Wouldn't it be then beneficial to everyone, who likes to use it - to ensure its sustainability to the level, that it will be around. There is always current version v6.xx that everyone can go - or purchase that one version that you need and just don't upgrade from it if you don't need.
This license + maintenance model is the norm of today's software, especially on smaller vendors. They simply cannot offer transparent lifetime license, because the costs for upgrades are continuous.