put a resistor between the conflicting pins - to limit the current.it's the current that kills a pin.
Input Leakage Current I/O Pin low = 1 uAInput Leakage Current I/O Pin high = 1 uA
You can safely connect IO1 to IO2 and set IO1 as input and IO2 as output.
I'm going to go out on a limb and say you didn't even read my post where I mentioned all of this including the 3.3v system in it. I'm going to also go out on a limb and say you saw images, you skipped reading, you commented on the images alone.
many of the information given has been downright wrong to begin with
consider this thread abandoned and I'll just be posting to StackExchange from now on, at least their a lot less toxic than this dumb place.