your record is legit, no doubt about it. You have just outgrown it (now that you have other records and a Doctorate with Honors Diploma).That Masters entry was from when I still had my 8' table, and I didn't qualify for the Doctorate, so it is legit.
Records should be allowed to be broken. And with every regularar record it is.
But with your M:73 if I beat the record I shouldn't be playing it in first place since it is reserved for weaker players and if weaker player try to beat it, they are not able to because they are weaker.
It's a glitch in the system. When you got your M:73 you were already in a very sound Doctorate level but your rules said, you are not allowed to take doctorate test, since you play on a 8 foot table. Which makes it easier to score M:73 (than it would be on a tough 9 foot table). And now it is a record for eternity, since no better player is allowed to take the test?