As the title suggests, wouldn’t it be nice to subscribe directly to a Soundcloud profile? Similarly to subscribing directly to YouTube & Twitter profiles.
Ideally, it would be possible to Train the feed across All/Tracks/Albums/Playlists/Reposts categories like you can do in Twitter for Likes/Replies/Retweets etc. Or even across each track’s #tags.
Very annoyingly, SC currently requires artists to each enable and then share their unique RSS feed with you: https://help.soundcloud.com/hc/en-us/articles/115003570048-Setting-up-your-podcast-s-RSS-feed
There have been some 3rd party attempts to write a service that connects to your SC account and publish your personal subscriptions as a feed (http://picklemonkey.net/cloudflipper-home/ comes to mind), but last I played with them, they work very unreliably. 
Yes, I’ve tried some of them too, without much success (other examples are the free http://www.getrssfeed.com/ which didn’t work for me and the paid http://fetchrss.com/soundcloud which might work but needs a registration). My idea was to treat a SC profile as a “normal” RSS source, even though it is not one. Thus the Twitter/YouTube analogy which AFAIK do not supply RSS feeds.
I don’t know how Newsblur makes sense out of Twitter & YouTube pages. Maybe SC profile pages are different in such a way that make it impossible or highly impractical to parse them as RSS feeds?
Or maybe the need isn’t widespread enough 