The post assumes that he is even registered. Kenobi is hiding on a backwater desert planet ruled by a crime syndicate. Unless there is some detail in the movies I forgot, I think it is reasonable to assume that he might not even appear in any imperial registry.

Darth Vader never once in all those years went to have Thanksgiving Dinner with his half brother.

Think of what good for the Empire would have occured.

In the novel Kenobi the Tatooine locals find out his last name and immediately start wondering if he's related to any of the other Kenobis they know in the area.

Kenobi is from a grassworld so I don't buy the "common name" thing. Doesn't make sense. In my head cannon he jedi mind tricked people around him into thinking they knew someone with the same last name. If Vader got too close he'd get sent on a bunch of wild goose chases. Also if there were actual Kenobi's Obiwan would be putting them in danger and probably assume a false identity instead.

But I just assume that Luke went by Luke Lars up until the events of ANH.

Unfortunately he must have gone by Skywalker because after ANH Vader sent Boba to hunt the unknown pilot. Which led Boba to Tatooine, where he interrogated people who knew luke, fought him in Obiwans house, and revealed to Vader he had a son via the name Skywalker; which is probably the only reason Vader gave him future chances.

Easily the biggest plot hole in the entire star wars universe.

Bruh the moves are barely canon any more. A good explanation is a good explanation.

It leaves a bitter taste that the blockbuster Fantasy need to have writing that falls apart the moment you look slightly deeper into it (Star Wars and Harry Potter come to mind).

One on one Anakin is a goat. In a solo space craft, he is also a great.

But he never got to Jedi Master for lots of reasons and I suspect that part of it is his problem with large complex situations. He can't even keep the Han from getting his peeps and two idiot droids from escaping in front of him while surrounded by his troops

poor Tim Russ

You bring up one of my annoyances with Lucas. It's clear, when re-watching Jedi that Luke's black attire is intended to be the dress of a Jedi, indicating that he's finally made it as a full-fledged Jedi knight. And if you look at both Kenobi and Yoda, they are wearing some kind of brown colored shirt under their busted robes that has a similar collar like what Luke is wearing in Jedi. So, like, the robes are covering a Jedi uniform, but are not themselves actual Jedi dress.

By the prequels, Lucas has completely forgotten this and makes Kenobi and Yoda look like they're stupid. And Vader too, for that matter. But, the bright side is that wonderful blue drip that Ben is rocking in the Kenobi series might not have happened, so... trade off?

They ain't found shit!