I agree with you, BTCMILLIONAIRE, that lightning network is in a kind of practice stage, which means learning and building more tools and experimenting, and of course, if more and more tools are developed, then income opportunities will develop as well.

On the other hand, I doubt that such lightning network income is anywhere close to achieving passive income status (even though that does seem to be a reasonable long term goal).  The mere concept of "passive income" means that you earn money with little to no work, and from what I can tell, there are a lot of true believers involved in lightning network, and therefore, seem to be putting in way more work than what is likely to pay off for them on any kind of personal financial level.  In other words, even though failure of lightning network would not be failure of bitcoin, but overall success of lighting network causes the Bitcoin network as a whole to become more valuable, as well as those lil tokens that we endearingly we refer to as corn.