Ask your questions right here on SN, lol

As for pleb nodes, DarthCoin has recently been popularizing the idea that plebs should not run routing nodes. Which I agree with.

Rather, plebs should run nodes with only unannounced channels, this is for privacy but also, a pleb with poor liquidity can actually cause net harm to "the network". As other nodes will attempt to use your channels for routes, but as a humble pleb, your channels are not actively managed and your public node causes other's payments to fail or timeout. Also, as a pleb, you want your node to work when you go to use it, but if you're not pricing your liquidity correctly, you may find that other nodes have used up your public liquidity causing your own payments to fail or become more expensive.

As for why PlebNet has mostly disappeared:

• its become clear that LN really only works reliably and efficiently as a Hub and Spoke network. I.e. the incentive is to open a direct channel to hubs and leverage their excellent liquidity for your node.
• The first 10k public nodes were mostly hobbyist trying to bootstrap network effects. This led to groups like plebnet.
• But as the network evolved, it became obvious who to open channels with (i.e. open channels to the nodes you pay the most, or the nodes with the best liquidity) the appeal of a "network for plebs" wore off as soon as people realize that plebs have terrible liquidity.
• with recent vulnerabilities, it is increasingly suggested to only open channels to nodes you trust not to steal from you. So soliciting channels from internet strangers is risky.
• we now have liquidity markets like LN+, Pool, and Magma where you can lease /rent channels.
• its not the best idea (for privacy) to link your node to your social media identity. PlebNet was often filled with post of people using their nym/name and posting channel open requests which linked their identity to their node. Which effectively allowed anyone to scope the UTXOs related to that node and make assumptions about this user's bitcoin stack. Which could be used with other information posted by this user to further deanonymize them.
• All in all, groups like Plebnet got bloated with new members and became noisy and at the same time the need for such support groups has been outsourced to more scalable platforms.
• Additionally, LN is always changing so wikis written about the subject 2 years ago are likely already obsolete and would require constant revisions which is not scalable.

Recognize LN is still early and the best information comes direct from the source (usually githubs of the projects themselves).

But the support network for LN keeps growing and places like SN and even Reddit are great for asking questions and getting help.