there happened to be a thread on reddit on this exact topic, and apparently the tint is only evident from one of the edges. I haven't used a TN monitor in years but I had thought that I saw it from the top edge rather than the bottom that the thread says. They're probably right though.
Okay, yup, you're right. I originally only tried the left edge. This time I tried all four edges, and if I view the monitor from the bottom edge at a sharp angle, the colors do indeed get all inverted and fubarred.
But it took a forum member researching another thread on another website to inform me that if I crawl underneath my monitor on my hands and knees and look up at it at a very sharp angle, the colors get messed up. I would have never noticed it otherwise. In the 5 years I've owned it and used it for hours a day every day, I've never noticed it.
I mean sure, if your choice is a $100 TN monitor, or a $120 I.P.Freely monitor, then go for the IPFreely. But if you can't afford the extra $20, your monitor won't be "next to worthless" as you said, just because it is a TN monitor. Unless you're trying to sell it to snobby Neowin forum members. Then it would be next to worthless.