I'm pretty sure that texture can be duplicated with a sand blaster FYI

I've even gotten something similar from a random orbital sander with a really old sheet of sandpaper on both ABS and PVC.
It's a nice texture for gripping, etc but something about it just makes my skin crawl. I don't know what it is, it's intangible like fingernails on a chalkboard, but it isn't for me. The good news is that some 400 grit wet/dry sandpaper takes the creepy away in a hurry (and leaves you with shiny filco plastic)