I do a bit of both. For awhile I was relying just on algorithms but switching to primarily active management the past few years has really been invigorating. Renewed my excitement for music. When I do use algorithms to discover some new stuff it's being fed mostly from my own curationnwhich is so much better of getting stuck in a loop where the algorithm recommends something, you select some favorites and then it recommends off those. This starts to really dull and homogonize your library after awhile.