Parameterised Transclusion Introduction

Any thoughts on the ideas brought up here?

Further; regarding the separated filter operators, (a.k.a function but proposed to be renamed into operator) I’m wondering if there can be a way to reuse the defined operators outside of the tiddler? I.e to call for it as if a macro or a transclusion? Every now and then I need to programmatically access and reuse filters defined elsewhere.