Did I do something wrong? Or does nobody like it enough to comment? Or does everybody love it so much that they're speechless?

I downloaded the PDF when you first posted it, then got distracted and didn't follow up. I like it in general. A Goudy-like feel.

A few random, non-exhaustive thoughts:

LC e is perhaps a bit too closed
LC f needs a stronger crossbar
LC g is too noose-like. As Gary Munch keeps telling me: "Think of the bowl as if the counter were to be a soft triangular form." The upshot: raise the right side of the lower bowl.
LC r is a bit too wide
LC s and c don't show the same angle of movement. The s is too upright.
LC u us perhaps a bit too wide
LC x may be too wide, depending on your final spacing

UC K (and perhaps also lc) has the leg too low and droopy.

Curly braces are too shy.

The cross bar in the 4 being warped just doesn't work for me.

What is the D with the tilde?

The grave accent isn't right. Check your curve's direction.

Thank you. I'll look at all of those.

The D-tilde is supposed to be an Eth. Does it not work?

The Eth has a straight crossbar. See for example Gunnlaugur SE Briem's discussion of this.

I know what a standard Eth looks like (Gunnlaugur SE Briem’s articles and experiment taught me much of what I know). I see my sample did not include my hyphen, but it also has that wobble in it. If it is ugly or hard to read, please say, but I rather like it.

If your hyphen is a tilde, there may be other problems. For example, how would you represent www.fake-address.com/~mypage?

I don't think the Eth is ugly, but it is very unstandard, and thus will draw more attention to itself than need be.

While I don't think I'd set a URL in this face (in fact, I explicitly considered URLs when I did then hyphen), I guess someone else probably would.

I've taken another look at it, and I've decided I prefer a plainer hyphen anyway.

I've posted a new PDF, showing an improved version in a text setting.

Please comment and (especially) critique.

I really like this. It has this quirky, old-fashioned look about it. Warm and inviting.

I'm no expert, but the crossbar on the lowercase 'e' looks a little too slanty to my eyes, and the lowercase 'g' looks... too conventional? It doesn't seem as playful as is could be, given the rest of the letters.