Not being entirely satisfied with my new template, I changed it. What with DISQUS being tangled in the HTML, it changed as well. Now, regardless of whether a post has comments or not, it says "View Comments" instead of giving me the correct number (usually "0 Comments," but occasionally people do say things). Tried reinstalling DISQUS and apparently the code went in twice because it then said "0 Comments 0 Comments." This is when I learned that DISQUS's help files are practically nonexistent (the one for Blogger is "Coming Soon"). Okay, world, I'm not positively impressed by this!
[a few minutes later] Fixed this! I can't believe I figured out to fix this; I don't speak XML. Pure intuition--and it happened to work this time. But I don't think I should have had to rely on intuition in this situation. Surely many people who use DISQUS wish to redesign their blogs at some point.