I had to search to see what this was all about: https://ogrforum.com/t...issing-engine?page=1
I also don't advertise where I live, even though there's nothing terribly valuable on my layout like that. I can't understand people who post all their info on websites and NMRA lists and invite total strangers to come to their home layouts. I'd never do that.
The same thing happened to a pal of mine into G scale where I used to be stationed in the Army. He had a brass model swiped at an op session on his home layout (I was on a field exercise that weekend, thankfully), which cost as much as a good used car. In his heart, he knew who stole it but had no evidence to prove it. He did the same thing; offering no questions asked if he got it back. He made the declaration at a club meeting he knew the thief was at. He gave the caveat that life would get very ugly, very public and possibly physically painful (if he had anything to do with it) if the engine didn't turn up soon.
He was luckier than you in that he got the engine back in the same condition. As my parents say, he "Put the fear of God into" the thief.
So, knowing he had to live up to the agreement, he couldn't go around saying who it was for the same reasons.
However, he could invite people from said club for op sessions on his home layout. The thief was pretty well known in that club and he absence was very conspicuous. Someone asked him where said person was (I guess wondering if it was him indeed) and my pal simply said, "we had a personal issue I'd rather not discuss here."
And apparently that satisfied the letter of the law. He never said that guy stole the engine, said it was unrelated, but it was well known in the club that the thief was probably in that club.
People took it up from there. The whispering got pretty loud at that point. Drama ensued but soon, everyone knew who it was without the name being said by the victim. I even heard some guys at a local hobby shop mentioning it, and the owner saying, "[bleep] will freeze over before I let him put one foot into this store!"
When people started asking him outright and he wouldn't answer the question directly, that's when things got ugly for him. Everyone closed ranks, turned their backs and he got pressed out of everything in the area. I heard a rumor he was even turned away at a swap meet someone was putting on, soon afterward.
Anyway, I'm glad you got it back but saddened that you have to do work on it to get it back where it was, and that the person won't get his clearly-called-for comeuppance.