I think #1 is intentional because I swear there is a way you can use maprooms and pick them up before you teleport to the ob. I haven’t tested but i have heard rumors this is possible.
As for the intentional aspect of going past 50%, i believe it would have to be since the default is 50% cap but Den seemed surprised in the streams that it went beyond 50% so when your lead developer is surprised, that leans that this was a unintentional.
I haven’t tried it that far, but you have to do more than twice. Only some of that corruption is able to go beyond. There’s regular corruption and tainted corruption. The regular stays at 50%, tainted will take a few tries. If you’re feeling brave give it a try for science
I had this happen to me. My corrupted player used a few of them in a row and was with little to no health and no stamina after this and the world around us went a bit dim and we couldn’t move or do anything and just had to stand there a few minutes until it cam back to 50% all at once. Was a weird couple of minutes but I was lucky as my last transport with it was to my base.
The only problem I have with the stone is the way it names the stones in it. It would be nice to allow us to name the stones because sometimes I can’t remember what that stone goes to, I have like 8-19 portals set up.