About the points you brought up: 
 *If I can't find enough info to create meaty subsections, yeah, introduction it is. But if I had enough info that it would clutter the introduction but not enough for individual subsections, I'd put what I have into a general "Overview" subsection. The Track Information formatting that I prefer serves mostly to have a neatly arranged space for notes on discography/different versions of songs ((Hirasawa sure loves rerecording stuff)), which I found to be the easiest part of the article to write. When it comes to the latter albums, most of the info on them has been generally divulged through Rittor Music's publications ("Keyboard Magazine" and "Sound & Recording Magazine"), they get pretty lengthy (the Gipnoza one was 20 pages long), none in English unfortunately. 
 *I do get what you mean, and NO ROOM & Hirasawa Lyrics are the safest websites about Hirasawa info (I'd throw MODEROOM & Hirasawa's Twilog in too, but those aren't in English), but Japanese fansites generally seem to get their facts straight (considering that info like BLUE LIMBO being partially inspired by Cambodia and the Talbo strings being too thin to play "Visible Sea" are the type of stuff you find on fansites and such). 
 *Yeah, when I wrote these articles originally it was more for setting up a foundation so that I could later expand on them, which I've never really gotten into much. Frankly, Karkador, the only one I didn't write by myself, is the best one around, and now I'm mostly worried with the P-MODEL articles more than the solo articles. 
 *All the articles are in a "Work in Progress" state, I work on them on my free time (which has been diminishing over time) and really I should have done more preparation before starting them. The capitalization thing comes kinda from trying to read Japanese articles and the way capitalization can go both ways on the language (most P-MODEL albums, AURORA and TECHNIQUE OF RELIEF are set in all caps; Potpourri is all lowercase; ONE PATTERN, SIREN, ENOLA and BLUE LIMBO mix it up) and me just kinda getting used to seeing titles with mixed capitalization, which got a Wikipedia editor to crack down on my articles. The way I chose to write my articles generally came from other articles on Wikipedia about studio albums, which generally meant "everything" (I like to have a place where all the information about something is gathered, also, the general outlook that Wikipedia has seems to prize more info than less), and that did show an issue with lack to supplemental information to make the whole article flow together and for everything to connect well. 

 So, me and you have pretty different takes on what a good encyclopedic article about a Susumu Hirasawa album would be like. I will keep your points in mind (although I can't say I would consider the fourth) when I eventually get to those pages. 

 About getting in contact: Do you have a Tumblr account? I won't spell out what mine's exact link is (there's various reasons behind that), but if you see a post about gear on the sidebar...