I'm currently learning WordPress hooks and am delving into core to see what's happening in there. I noticed there are filters in wp-includes/default-filters.php with PHP comments about Kses. I wasn't sure what Kses meant until I found wp_kses in the Codex.
The notes on this page says:
KSES is a recursive acronym which stands for “KSES Strips Evil Scripts".
So then do I assume anything I find in core with either kses in the code or the PHP comments has to do with data sanitization? Just trying to understand general patterns in WordPress core. Thanks! :-)