Figure A. These were the messages you sent at the time. You even accused someone else of doing it
Figure B. This was the building you griefed, and reportedly you also griefed a farm elsewhere (although I do not have a screenshot of that…)
Figure C. This was your inventory, until Water Bottle called it out and you deleted the materials encircled, as well as the bombs (there’s some stuff in it that I noticed he didn’t encircle and you didn’t delete.)
Figure D. Chat messages with the builder of the griefed build backing that up:
Figure E. Your inventory after you deleted the materials:
The proof that you were lying in your messages pretending that you didn’t do it is a presence of the griefed materials in your inventory, as well as bombs, not to mention that you only had copper tools. Those materials, luckily except for the tiki torches and probably the shelves and door, were suspiciously deleted after you were called out.
You cannot “know it wasn’t against the rules” and “proceed to cover up your tracks” simultaneously. If you truly did not know it wasn’t acceptable, you wouldn’t have deleted them as soon as someone pointed it out in the first place. Except you did, and you even pretended you didn’t do it, as well as accused someone else of having done it. This invalidates you claims of being unaware of the rules.
tl:dr you say you didn’t know but your actions prove otherwise?
If you were banned only from Survival, there’s a chance you probably would have just proceeded to grief in Build instead, or sabotage Zombies lobbies. We wouldn’t know, and it’s better if less damage was done so that’s why you were banned from the whole server instead.
You do realize that not everybody is the same as you right? You do know that there are people who legitimately come into the server to cheat while being well-aware that they shouldn’t?
I’d like to point out that in a previous iteration of your appeal, you mentioned Minecraft servers.
Last time I checked most regular Minecraft survival servers also banned griefing, so why else would you go specifically to ones that allowed it other than to be able to grief stuff at all? There’s no doubt you did also do some griefing in those ones since it was allowed. This points toward your intent.