Hey @gerry I understand your point and Nick's but if you would let me flip that coin...
A novice who is learning MQTT might understand the whole #+ filtering of topics but get them to do that in a function node or regex or JSONata and they end up here asking "how do I do ..."
So I started this thread to canvas opinion and so far I see a 60/40 approach, 60 like it 40 are "um but you can do xyz".
The the guy who raised this originally posted an interesting comment that led me starting this thread...
... To which I was originally defensive but he did raise an interesting point.
Keep the comments coming. It's good to debate. 
