As we all know you are not allowed to vote with "Negative" for Unknown Attitude and we all know why and I have talked about this many times but also feel free to ask me anything in my discord.
In this case, Seif225 didn't vote with "Negative" for Unknown Attitude but as he said in his reason that he never saw you in-game which means your Activity is very low so he was talking about your Activity, not your attitude which is a valid reason to vote for.
I hope I have explained it well enough for you to understand the difference between these 2 things and also have a look at the rules again maybe you will understand more and if you have any questions feel free to come and ask, thank you for reporting.