Having an Icon like Laszlo back is fantastic but if otherwise then a close watch is required.
However, if it's Laszlo, took him so long to visit here again and it's a surprise! If everything is fact checked and proven right then it's a warm welcome to a historical name!
Also Laszlo did not posted using another account that his account has been hacked.
You're right yet nothing is impossible right? that's exactly what raised OPs concerns and it worth it!