There doesnt need to be anything else, oping into someones eowcf, is pretty bad...enough to get talked about in a negative light. As to everything else i can go through my irc logs but off the top of my head i can think of
1. EOWCF oping
2. Agreeing to let someone prep for war then attacking them (w/ops)
3. Refusing to fight kds you know have a chance to beat you...turning down the kd 95% your size to wave a kd 85% your size (getting farmed by SPGC before they taged doesn't mean you war kds that can beat you)
4. Land dropping to ghetto bash
5. Taunting said ghettoes
6. Waving kds for science that are 80% your size for 2+days
7. Agreeing to a cf then breaking it to hit again (also known as using a cf to reset the hostile meter)
8. Generally being nastly/arrogant to those around you...untill u know they can beat you then u run away scared
Do i need to list more and give specfic examples via irc when my kd said hey look whats strippers did to a another kd? or forum posts/in game msgs you guys have said.
edit
Back then alot of war kds at the time would take the top 1-2 attackers and bring them down to the kd core, while growing chains, you'd end up going from 40k acres to 39-41k acres just resizeing your kd. Strippers however did drop from 40k->30k quite often. Even back then among the war kds this was seen as low, done just to prey on semi-active kds.