@ShinobuOshino
(d) Already off to a bad start with that. You're assuming you're right with something that has little evidence and trying to overwrite the author's story with it. The dog barked at him, possibly because after trying to raise the troll he ran out of control and therefore the dog was no longer under
his control. The dog was clearly barking at him and was meant to be barking at him. Whether that was to warn him or just show aggression at him is up to interpretation but don't say the dog should have been barking at the door.
He also ran for days at top speed using a skill, it was realistically unlikely for him to be followed.
(b) "what's the point of taking an armor if you are sure that you'll meet no one?" Really? Are you seriously asking that? He had no defences and while he wasn't
intending to meet anyone leaving such a powerful armour behind is objectively the more foolish choice. He'd deal with hiding it if he really wanted to move to populated areas, doesn't mean he should leave himself defenceless.
"Nontheless the initial and trashy thing to hype her by showing how stupid he is when he tries to control something knowing to have exhausted all control is beyond bad writing"
Again, you're making bad assumptions because of knowledge that was never confirmed. In fact its heavily hinted that he didn't know what 'control' was and how to check it before trying to resurrect the troll. Its happened many times before, he's literally learning the system as he goes and necromancy was a new addition.
"And thinking that no one has a magic to see people around or to follow traces and thus being sure that no one, not even the one that created a spatial rift, will be able to follow him is pretty stupid."
He took what precautions he could and thinking someone is always able to and will get you is also a stupid way to go about living. If the creature that created the spatial rift is after him for example, he's dead, no point in worrying about it, because that could possibly just follow him anywhere, regardless of what he thinks or tries. Its not like he meant to fully set up shop in that shack, it was just an area to pause after believing he gave himself enough distance between the battle and himself. Even if he continued to run the knight would still catch up to him because his 'dash' ability ran out.
"if I was idekai'd in a world with magic and found an overpowered item and I had no way to do a full check on it, I wouldn't use it. It may be cursed in case anyone but his owner tries to wear it."
That's how you'd die. You can never be totally sure of anything in a world where you don't know the rules but if you let that stop you then you get nowhere and eventually still run up against a situation where your life is in danger and then you'd wish you took the smaller risks from before to prepare yourself.
"The light that it emits from time to time should be an obvious signal of that, it doesn't matter if it's a GPS, a curse or just a light to show that it was stolen, it makes the armor unusable except for the time he is sure he won't meet anyone. the danger is way above the gains."
Again, another assumption only in hindsight. A light emitting on a magical armour can be for A LOT of reasons and it only shone once and he wasn't even sure about it. If it was a light that showed it was unusable he would have known because earlier in this very story he came across things like that already. The armour is also pretty much always usable unless he has a non-combatant mission to do. After all as long as he's careful anyone he meets would be someone he could kill if they recognise it, a unique armour of a royal knight not many would see, also after he finished absorbing all of those abilities from that fight few people would qualify as people he can't kill if exposed, so there would be no reason to leave armour that good.
