Your username: opticyclic
The offender's username: Demon_HSP
Type of offense: Offensive building
Evidence: images from /co i and admit of guilt
He built swastikas in my base as you can see below.
Also, in the first screenshot you can see a mention of "all the HSPs" which makes me think it is related to this as it is the same area.
He's also been banned for griefing before