There's not a lot of topics about it because nobody uses it because you have to look everywhere for information about it.
That's a very bold claim! Here are some LN stats for you taken from
https://1ml.com/statisticsNumber of LN nodes: 21,833
Number of Channels: 51,277
Network Capacity: 1,601.35
BTC = $54,385,766.81
Average Node Capacity: 0.131
BTC = $4,450.27
Average Channel Capacity: 0.031
BTC = $1,059.26
I wouldn't call this "nobody".
What if Elon musk tweets about the lighting network, we would have a ton of people googling it and getting directed towards their own space to discuss it
People who follow people like Musk are not interested in technology, they are interested in making money. I doubt if that many would bother looking into LN unless they think there is money to be made!