Problematic leaves on my paphs...

[NYCorchidman]

The first picture (starting with the one on top left, going to the right, then from bottom left to the right) shows the pleating I have never seen before. They run along the length of the leaf and I now see this kind of look a lot when I go to orchid stores. I hope they are nothing serious to worry about.

The leaf in the first two pictures also shows small areas of indentation. This I see a lot. While most leaves on my paphs are perfectly fine, some have one and others have quite a few of these on them.

I noticed that the little brown spots are the results of physical damage, like a bruise. Most of my paphs are sitting next to my bed, so sometimes some of the leaves get smacked by the bed cover. The leaves that get hit and bent seriously would develop these brown bruise in a few days later. However, I also noticed that some brown spots just happen without being physically damaged, like on the newest growth on a paph that's sitting in the kitchen (where it doesn't get smacked haha) I see these little brown spots on one of the flower as well. No, I didn't smack the flower.

What really bother me the most of all this are the manifestations seen in the last three pictures. The collection of little black dots toward the end of the leaf seem to be lodged inside the leaf as the leaf surface is perfectly smooth. The underside of that leaf has the same look.
The deformed leaf in the last picture along with some dark indented area is also something mysterious to me.

None of these are spreading by the way.