The OP is not completely in the right, since they did not tell the hotel beforehand that they were leaving/not to touch their belongings. It is also completely unreasonable to expect them to leave a room key there until you are ready to move. During the time you are not moving, they are losing revenue from one room. If you were not able to make it back until late, you should tell the hotel so. That one room could lose them a few hundred dollars in revenue from a last minute rack rate guest.

The hotel might have seen it as a good deed, and the belongings were completely in tact, so I do not see this as a valid grounds for complaint. The dirty room could do with some compensation (however, we do not know whether this is exaggerated).

I'd say in this case it is not worth chasing up or compensating the OP, especially as the rate at KLDT is extremely cheap (yes, that matters), and that the problem was solved quite well. At worst case, the hotel should ask AT THE TIME of the guest complaining whether belongings are allowed to be moved. However, it is reasonable that they did so (and kept your belongings intact) as many people would see it as a sign of good service.

Sometimes you need to roll with the small things though.. I don't believe OP should start jabbing the hotel for compensation based on what happened. It seems as if OP is exaggerating (dangerous sharp razor on floor, blood stain etc.) in order to chase compensation. If these are not exaggerations however, I think you should chase it up with at least some points. You just can't expect a hotel to keep 2 empty rooms for you for you to move whenever you want to.