Hello ChippyTech @ friend, are you a member of Roku team? Seems not to be... First: Is here a place to post concerns about ROKU'S devices? Yes! That's the community of costumers of Roku... When you buy any expensive device your expectation is a good software to manage that new device and Roku has a good software, but captions / subtitles have to be updated/upgraded. If you don't care about subtitles, if you don't use them, ok! But Roku sells their products all over the world, and other countries need subtitles to watch foreign content, so it's not "my concern", many costumers use subtitles, many costumers came here to post or reply others topics about subtitles problem... Many costumers expect a solution for "my concern" because if you understand a little bit of programming, you know it's not so difficult to implement the right color (real white) and a better font family with bold option.
So I think your "advice" (buy another device) is not the right one in this case. If some day you need captions or subtitles you will understand "my concerns"... And if you know how I can contact ROKU'S team personally, please let me know... Have a nice day...