You shouldn't be saying that they are getting the female teachers out and replacing them with male teacher, because they will be more strict- It comes off as a sexist comment. A rumor is a rumor- you shouldn't believe anything unless you have full proof.
Many teachers are well qualified. This doesn't mean that they are the best teacher or the worst teacher either. Why cant somebody work at a smaller school if they are "well qualified"? I live in a small town and go to a private school- We have many teachers that have taught in Colleges. They are hired to make a better learning experience for the students.
Many teachers will go by your name that is given on the class listings. If you have a problem with them using your real name then simply just ask them to call you by your nickname if its reasonable.
I think it is kind of rude that you think this new teacher thinks too much of themselves for just sending out a letter to the parents. Many teachers will do this for many reasons. If they are new to the school they are just letting people know a little about them, and they could also be new to the community. Letters are sent out so you get to know them people, so when you see them you dont always go: "Who's that?".
Just because they have so many qualifications does not necessarily mean that they are old(er). Either way- age does not matter; They were hired because they will give you the necessary learning to the fullest. Age shouldn't matter, because they are there to teach you things- not be your best friend. Btw, why would it matter about how old they are?
This next comment by you kind of came off rude as well. Most to all teachers know how to use a computer as it's necessary for there job. You dont have to be a computer teacher or expert to type out a letter. Its kind of offending when you say your kind of say that old(er) people can not/do not know how to type or use a computer. My grandparents use the computer and are fine with it.
His name shouldn't matter. You're there to learn- not play. Remember to respect everyone at all times
Just my input on your comments