When comparing SoundCloud vs Reddit's /r/kpop, the Slant community recommends SoundCloud for most people. In the question“What are the best ways of finding new music?” SoundCloud is ranked 2nd while Reddit's /r/kpop is ranked 24th. The most important reason people chose SoundCloud is:
Links to related music, based on what you're listening to, can be found in the sidebar.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Recommendations
Links to related music, based on what you're listening to, can be found in the sidebar.
Pro Subscribe to artists
You can subscribe to artists to be notified the instant they upload a new song or give an update.
Pro Explore tab has new music constantly
Explore tab on SoundCloud shows trending music that can be filtered based on genre/tag. There's a constant stream of new music.
Pro Follow people
You can follow people with similar tastes or that often find new music. When they favorite a song, SoundCloud will notify you about it.
Pro Free to use
You don't even have to log in or sign up for an account if you don't want to.
There are paid options for if you want to upload large quantities of audio (eg if you're a music label you'll need this), but it's free to download as much and as often as you like.
Pro Pre-releases
Some music labels, especially newer ones, release on SoundCloud before anywhere else.
Pro Creative Commons filter
SoundCloud allows for finding music that is licensed under Creative Commons.
Pro Find artists before they get famous
Many artists, such a Crayon Pop, gain popularity on Reddit before they're even picked up by a major label.
Pro Find new music before it even hits the charts
Users submit videos as they come out, often before they've even gained enough popularity to make it onto the charts.
Pro Very active community
Links to new music videos are posted daily.
Cons
Con Can't do an advanced search
You can't search, for example, for Creative Commons music with the tag #trap. It could be useful to search for music you like that is under Creative Commons.
Con Interface is full of bugs
The SoundCloud website has tons of problems, including issues with notifications, favorites, and uploading sounds.
Con Audio ads in some uploaded content
Some content on SoundCloud includes audio ads, particularly sponsored podcasts.
(Note that SoundCloud itself doesn't add these - all the audio you're hearing is exactly as it was uploaded.)