I got on the items list once, for about 2 hours. Unfortunately it was just before I sold out of the last crop.
The month I was selling before that I didn't appear on the list at all.
No idea what the algorithm is all about on here (I don't think anyone really knows) but my advice would be to keep posting on various threads so people can see you and then they can click on your profile. That's basically what I had to do, and I imagine it'll be what I have to do in future.
Luckily I'm only a small seller so it's not such a big issue for me.
Hope you guys are well and good luck.