Promised myself I'd write this up once the pleated dress was actually done, so here it is. I spent most of a year on it and learned a bunch the slow way, mostly by messing things up first. Weight is everything with pleats. A skirt knit in anything heavier than fingering turns into armor, so keep the yarn fine and go down a needle size for the pleated sections. That keeps the folds crisp instead of floppy and stops the waistband from growing three inches by the end of the day. I marked every fold with a removable stitch marker as I went, because losing count halfway round a pleat round means ripping out a whole evening of work. Learned that one the hard way, twice.
The other thing nobody warns you about is how repetitive it gets. Thousands of stitches per round, all the same motion, and your wrists will file a complaint around month two. I started setting a timer, thirty minutes of knitting then a stretch break, and that habit is honestly the only reason I made it to the hem.
Would I knit it again? Maybe, but a couple inches shorter next time. My hands only just forgave me.