How am I confused? This is the clarification I provided in another comment:
I'm talking about random people opening large channels to me, pushing all the liquidity through me to services like LOOP to obtain clean coins, closing the channel, and leaving me with their dirty coins.
This is of course a very specific use case of the LN, not how it is usually used. But it's my educated guess as to why I got people opening a 1+ BTC channel with me, pushing all the liquidity my way into my large channel with LOOP, and then closing it right after.
Or am I missing something?