loadRL (which I'm not associated with, and am not related to) is a launcher that's being developed, but it already works well enough. Why I think is good to place it in the sidebar?

Well, people who come here will be:

a) The old players that already know how to play, where to go, how to find... roguelikes.

b) The new players/roguelite players that don't know much about the genre and just read the roguelite vs roguelike discussion we always have. Those have no idea on where to start, but they can just head to loadRL and have a fancy menu that will help them download and manage some of the old RL that are not talked that much, but they may find attractive and fun. I'm not saying they are less intelligent or something, I just say they may not be used to wander archive.org and old forums, because steam gives all the support they need for roguelites. loadRL can make it easy for them to just check what RLikes are about and decide if they like Traditional RL or not.

Also, I (a traditional rlike player) have found some RLikes that I forgot the names or didn't know about in the launcher. Those RLikes where not talked in r/roguelikes because they are average, the ones with limited content or no remarkable points, but I am having a lot of fun with them and I'm sure a lot of you will find them good, even though if is just for a few minutes.