I definitely get it on the trainer front. I meant more like, catching your horse properly out in the wild, then instead of stabling it, saving it and loading it later when you want it, but even that doesn't have the same feel. I don't tend to be one of those gamers who complains about my immersion all the time, but loading a horse from a trainer really does take me out of the game instantly. Also, even though it's the same model and texture and ID and all that, my brain still goes, "But that's not MY Iron Grey Roan Ardennes."
Re: less-than-legal games, I'm pretty much of the same mind. I'm not generally an advocate of game piracy (somehow, despite the industry's size, I continue to feel like it's small enough where what I buy might make some kind of impact to somebody), but I make exceptions for the Sims and other games of that type that would cost hundreds of dollars to buy all the DLCs. It helps that I own the base games for them, I guess. For RDR2, it was partly that I'd been waiting for a good sale for a couple years at that point and realized that I was unlikely to get one anytime soon, but mostly it was just on a whim. The crack, when it eventually came, was a huge deal for game piracy; RDR2 was infamously uncrackable for a long time. Unfortunately, the version that was cracked has several troublesome bugs, such as a problem with horse eyes not rendering properly, and it's missing some online content, so I can't use as much online stuff as I'd like in single player. Buying the game properly is still on my to-do list, is my point.
For the fleeing horses, I actually realized I'm an idiot who didn't play for a bit and forgot the order of operations for having the maximum amount of horses following you. The steps should be to 1: have your regular horse who's registered at the stables (horse 1), 2: catch a new horse (horse 2), 3: get horse 2 to the first bond level, 4: catch a third horse (horse 3), 5: mount horse 3 and have the other two follow you, optionally lassoing horse 2 in case you end up bonding with horse 3, which would result in the game setting horse 3 as your temporary horse and having horse 2 wander off so it can clear the horse out of its memory. I was lassoing horse 3 because I remembered having to lasso a horse, but not why, and when you lasso an unbonded horse, it gets agitated and you can't tow it along. So that's that problem solved, anyway.
I'd still like a way to have more horses follow you, though, and of course a way to have more horses at stables, so if anyone finds this thread and has any ideas...