The 2 land entry rule has gone so he need not be concerned with that. If he makes the trip independently he may find he has to stay in Laos 1 or 2 nights, not the worst thing that could happen to you. Getting a tourist visa is not as easy as it was, now Laos is an e-visa country it is uncertain exactly how long he'd have to wait there for the visa. In any case he will get a 60 day exempt entry anyway which can also be extended so a tourist visa offers little added value.
Quite possibly with no functioning juristic body there was nobody collecting (or at least spending) residents fees and therefore the gate is open and unprotected.
I used to go to Queen Sirikit near Rayong and for sure, there was a notice on the wall telling that foreigners paid more (I think 50%). Absolutely fine by me.
If you stay in a hotel do you do it? No. It is their responsibility. Same applies to staying in your wifes home. Immigration may have shifted the onus onto the person staying but ultimately in your situation is is actually her responsibility (and easier) to do it herself.
"“African people, who have black skin and flat noses that make it difficult to breathe, are hired for millions of baht to be models. Thai people look much better. There’s no need for [our people to get] nose, jaw or breast augmentation."
You mean you have a 12 month extension of stay? All you need is a re-entry permit, single or multiple. You can buy that at the airport on departure or at immigration at any time, no need to wait for your next extension.
Presumably you mean you got a 12 month extension together with a multi re-entry permit?
The only thing you need to do is make sure they stamp you in correctly when you return, i.e. to the expiry date of the re-entry permit.
The e-visa isn't new. It does not impact you in any way.