Most of the problems with different people complaining and their frustration comes from the tone deaf nature of their customer service. Having been in the customer service business for a few decades now and I can tell you Redfox second greatest failure is customer service.
Starting with the sticky "no fox, no job, no future." What about that title, suggests that it has relevant information about the demise of Slysoft and the rise of Redfox. Hell, the old product was named Slysoft not fox. We are in the sixteenth year of the modern forums, and most of the pinned posts or sticky posts are full of meta crap and I mean meta crap. If you are going to rely on pinned posts to pass on relevant information to new arriving customers then the name of the post needs to suggest, no, it needs to tell the customer what is contained in those posts. How about this as a title or subtitle. "Why Slysoft failed and Redfox was formed." That explanation post needs to be pinned in the top five sub forums or so. Eliminate ambiguity by stating or labeling your explanation clearly.
Then there is the belief by some of their representatives that the shutdown of Slysoft was a big deal. News flash, it was no big deal, to the world at large. I had 3 to 5 news feeds at the time of the demise of Slysoft and not one of them had the news of Slysoft shutting down. And all of them have tech news coverage listed as important. I found out about it from a poster on a forum I help moderate. She was a dedicated user of the product, at the time, I was not. With all the stuff going on in the world on a macro level, not to mention the day in and day out personal situations of most people. The chances of the demise of Slysoft showing up on most peoples radar is slim to nil.
Having been in a industry that relies heavily on sale signs and special deals, where bait and switch and misleading wording were a major problem in the eighties. I can tell you the way the update process and the update page was handled. Would have, if the company was based in the US, resulted in a class action lawsuit. I know some will balk at the last statement. But here in the US, clearly stating what something is or is not, is a paramount issue. I can not even remember the number of class action opt in lawsuit letters I have received in the past year alone, not to mention the past 16 years.
Finally, having been in the customer service business for years. I can tell you, you can anger a lot of people and it will in the long run not matter. However there is always that one person who has the means by accident or pure intent to start an avalanche that buries. The hostility that has wane of late, but was very prominent until recently to highly confused consumers. Has surly spawned the proverbial. "Cutting off the nose to spite the face", consumer. Which can shorten the life span of Redfox.