I have always disagreed with the above analysis of lifetime of a product.
My analysis is lifetime of a product is as long as I own the product .
Like car parts warranties . I've replaced a lot of brake pads the second or third time with a lifetime warranty.
With the first analogy I could create a software .Sell as many lifetime copies as I could . Then end the life of the product & no longer support it.
That would mean I could do this in a year or even less. Take the money & run so to speak.
To me that would be breach of contract.
I know Fengtao has continued support & that is as it should be.
Honestly I didn't keep a copy of the original EULA either but should have to see if it had the life of that product exclusion. It may have.
I know on the site it didn't have any information like as soon as the "the life of that product" ended so did the lifetime registration that was paid for.
Like Craftsman tools if I take in a 40 year old tool they will do their best to replace it with the same or similar tool. That is a real lifetime warranty.
I have actually done this . I didn't get the we have ended the life of that product so you no longer have a lifetime warranty.
That is my 2 cents worth.