Wow, when I clicked on this post, I didn't expect it to be nearly so lengthy & thorough haha. Ive noticed an interesting phenomenon in the comments on my posts over the last year and a half.
When I started, and for the first 6 months at least, I received relatively few comments on any of my posts, but they were almost exclusively genuine comments. Since roughly when I cleared 1000 followers, the majority of my posts receive a handful or two of comments, almost exclusively WTF, Basic, Copycat, and Ulterior Motive.
Entertaining & thorough post, it's unfortunate that these spam & spam-like comments make up so much of Steemit these days.
What you mentioned about the change in comments from genuine to the other types overtime, I also noticed on my posts after reaching close to 1000 followers.
I am glad you found my post entertaining - when I make posts about issues I try to add humor to them to lighten the conversation :)
Hopefully these undesired comment types will eventually be a thing of the past - but until then, I simply plan on upvoting/rewarding those who put in the effort to leave a genuine one :)
Thanks for your Genuine Comment! :)