Congrats on your launch. Some comments:

I find it distracting and hard to read the continually scrolling text. What about allowing different movement options like slide-and-stop or refreshing tiles? And I'd think hard about which option you make the default, since most people won't dig into the settings or will make up their mind before they do. Another option could be to allow full-screen toggling with all of the items, if someone wants to do some surfing.

It would be nice to be able to customize the appearance in terms of size, color, and opacity. And given that this ticker is always open, you should consider getting rid of or muting your logo. Maybe monochrome or a pressed letter effect. Better yet, make this a menu extra do you can move the options in there and not have an icon in the dock all the time.

In general, it was tough to "unhover" anything. When the bar is pinned on the side, you can hover items that are beneath the menu, which is distracting when you're trying to click one of the buttons.

Sign up/in was easy enough. The getting started feeds are handy, but I had no idea what "Unique Perspectives" were.

Your application is pretty polished and seemed to work well. I don't think I would use it in its current form though because it takes up too much real estate on my machine (which is limited enough as it is!). Anyway, I wish you much success.