Welcome to the internet
I understand the feeling. Sometimes it does seem a little unfair, but you just have to shrug it off. Remember that the mods are trying to monitor the whole site, so sometimes they may not know, or care, about the whole situation.
It is easy to come across as hostile and/or insulting when that is not your true intention. Without knowing the specifics, I'm sure that applies to your posts as well as those of the other party and the mods.
Also remember that being a senior member means absolutely nothing. Some people are senior members in their first week, some don't become senior members in their first year. Some people are a-holes. Life goes on.
Don't let a few, possibly, bad apples ruin the site for you. There really are a lot of helpful people here. Just ignore the rest