There is truth to the last statement....the other two I think are unsubstatiated poo
...no offense to whomever told you that. I've never heard of tea being bad for the liver [millions of people around the world aren't dying from liver problems
] and other than the sugar there's nothing in the honey that would be bad for you. 7 spoons of honey is far from 'too much' sugar for a normal person to eat. I mean if you ate 7 spoons of honey at once you might get a sugar rush but throughout the day I doubt you'd notice anything from it.
What you want to do when adding honey to tea to really reap the benefits of honey is let your tea cool just a little before you add honey...basically to the a 'drinkable' warm temperature. I usually don't gulp boiling tea myself but usually once it's brewed it's cooled enough to add it in. If you want to be careful wait a min or two. Honey has all those same good bacteria that yogurt does that aide digestion and when you boil it or scald it with boiling water they die
I've heard, but I don't know if it's true, that if you are taking local honey to help with allergies cooking it diminishes the relief it will give you. It also changes the sugar properties in the honey which makes it taste differently. Warm honey tastes really good [much better than cold honey I think] but honey which has been scalded doesn't taste as good...so that would be the biggest detriment to putting it in super hot tea I think