::::1. No page numbers makes the source useless (and the formatting is poor here, as I have already indicated), so I will replace it in the morning with something more appropriate 
 ::::2. Sortability is useful, and although some people don’t like it, others do. If you do not like it, you do not have to use it, and it does not affect how you "use" the table if it is there. Some featured discogs have it; some don't, so there is no hard and fast rule on its use. As the community consensus on this page (through the FLC) was to keep it, it can stay until a consensus overturns it. 
 ::::3. Your edit warring to remove the slash in the break was one of the most pointless things I've seen: both forms are valid (so there was no need for you to remove it) but our software converts all varieties of versions of the break tag to  in any case. As there is no difference in how it appears on the page, there is no basis to removing what the software needs to put back there anyway. -