Reddit is the place for text discussions about what's hot in your head and on the Internet at large - it's a huge site and with millions of chats, so what you really need is a good client. In the absence of an official one (which is fair enough, Reddit is primarily 'just' a web site), there are a number of third party applications, with ReddPlanet being brand new and very polished. Here's a quick look.
Here's ReddPlanet in action on my Lumia 950:
Reddit's front page, here are the stories and chats that have been voted up the most - always something interesting. This is a full UWP application, of course, and also works in landscape mode, on a Continuum display, and on desktops and laptops; (right) the hamburger menu incorporates both major site sections and also profile and Settings shortcuts inside ReddPlanet UWP itself. It's very well programmed, quick and clear.
There's quite a bit on any subject under the sun - including Windows 10 Mobile, it seems. Here I'm looking at relevant topics posted in a sub-reddit. Note the search, post, voting and refresh tools on the bottom toolbar...
Reading through a longish sub-reddit thread, the core sharing mechanism is around web pages, so links open in a web instance within ReddPlanet, though you can also then open the same link in (e.g.) Edge. It's flexible and quick.