Gokuyum, I think you can´t see the difference between criticism and personal insults. As a matter of fact, i have no idea what insults Spritzer posted but I trust admins they had basis to terminate her membership.
On this very site we´ve had millions of arguments and nobody has ever been deleted simply because they didn´t agree with someone or because they found somebody´s ideas ridiculous. The only rule is not to insult other members personally.
I believe most members have been warned at least once or had their posts deleted - they had all the right to express their resentment via PM to the admins rather than continuing in public.
If I remember correctly, all personal matters should be dealt with the same way, ie via PMs. If you find somebody´s PMs insulting, you may mark their messages as spam, choose to ignore this person or report the message to the admins.
It has never happened that a person was deleted without warning. However, if despite warnings you continue to behave in a way admins found unruly, then you have to face consequences. It´s actually quite simple.
I understand you are not happy about your friend having been deleted. As you can see, you´re free to say it in public. You like only those that agree with you - fine. Others, like myself, do not dislike a person only because they disagree. I must say I´ve enjoyed all discussions here and I really appreciate the input of people of other opinions. I might not agree with them, but I still value and like them.
I respect your ideas. I am searching for one to respect my ideas too. It is so hard to find such a person. If you are right, it is more difficult than ever. There is a saying in Turkish "Doğru söyleyeni dokuz köyden kovarlar." I think this saying is completely true. Have a nice day.