slink creates named links using a Markdown-like syntax. Named links insert html or php into a page or post, without writing any html or php.
Yes. As of this writing, the plugin has only been used on a few sites. So feedback from other users will of course improve it. If adoption is great enough, we will probably put an admin panel onto slink. Don't worry, if we do that, your config file settings will get imported by the upgrade.