Ultimately, unless there is a community side integrated into listenbrainz I cant see why I would personally bother putting anything on there - and then begs the question of, is there a demand for such a thing? I mean last.fm must have got rid of it for some reason?
If you build it, they will come 
ListenBrainz will always appeal to a geekier crowd than Last FM - a geeky subset of an already geeky subset. We can try to beat LFM at their own game, but they have paid designers and we don’t. It’s an uphill battle. I’m not interested in ‘competing’ with LFM as much as I am interested in building a site that -I- want to use. And with my data-heavy background, I want some visualizations and tables that might be too much for the average user. I’m not a designer, so what I want to know is – if I build it, will I also have to make it palatable for the end user?
The v1 of this could be too user unfriendly for most people. But it could also be a great geeky visualization. So ListenBrainz needs to decide if they’re going to put that on every page, allow customization, or make a very high barrier to entry for devs who want to make new visualizations.