It's no surprise for me to see BTCLN still hovering around 1%.
Same thing is happening on all other websites that accept Lightning, Bitcoin and other coins, LN is always around 1%.
We've tried so hard to promote LN though... Sponsored and helped organize the Bitcoin Film Fest, paid for Satograms to deliver ads to every LN user, we have an LN node, we sell channels from it on Amboss. We have direct channels with exchanges that support LN which we list as well as companies we often collab with (for instance Cryptosteel). The table on our homepage marks BTC, XMR, USDT and BTC on LN support for every exchange.

Adding user feedback directly on OrangeFren for listed exchange services could also be good.
Good idea. In the past we tried launching a forum, but it wasn't a success.
Maybe users should have the option to manually exclude services they don't want to use via OrangeFren.
They already have it partially implemented; they just need to expand the selection. For example, in addition to "show only never KYC", I would also add the possibility of narrowing down the selection to only those with "own liquidity". Obviously, all exchangers that use third-party liquidity at some point have a problem with KYC requirements, because it does not depend exclusively on them.
Good idea! We'll work on that.