What is sabotaging is different for every event.
In this circumstance it is preventing players from participating in an event through deception and a cheap trick. It is sabotage as it is giving your side an advantage / better circumstances as less people are their to appose the siege regardless of how it turned out.
It is a case by case thing and if someone feels another is sabotaging an event they can either report it in a ticket or contact us to ask about it. If you are reporting a player you need evidence of some kind. Screenshot, video, Anything that can tie a person to an intent of sabotage.
For Kraken since you bring it up would be someone intentionally pulling krakens aggro, then dragging it out of range repeatedly in order to make it reset and stall it out till it despawns.
For General in peace. Peace is a regions state and not tied to this event. If someone was to sabotage general it would be dragging the boss out of the area in order to reset it till it despawns. (Or if they do it for a long enough amount of time administration deem it as sabotage)
As for using going pirate to remove guild cooldown by technicality this is an exploit/unintentional system.
When XL designed the system it never accounted for your current guild cooldown. So it resets so you can instantly join a pirate guild. But does not return your prior nations guild cooldown.
However. This unintentional system has almost become part of the game in what the current faction is. Many people would call this an unintentional feature than a bug and is not something that would be punished. If we did members from all nations would have punishments.
As to the mention of using alternative guilds to bid on castles to deny sieges.
Having an alternative guild to bid for you scroll with the sole intent to fake a siege is not allowed.
Now this is not the same as 2 guilds in friendly terms with one another and the second guild bidding and then say splitting the returning peace fund.
As of right now the second is considered as 2 groups that both seek to gain from an exchange so it is not an alt.
This is not sabotage of an event because there is no opposing group being denied. Almost always the bids are 1 copper so any other group can siege that site by bidding any amount above that for the scroll.
Expect I didnt abuse a mechanic because i am right now pirate and working on getting my swim title. Is that not allowed?
This only shows how petty these players are . They accuse others of something while on the other hand and then do the exact thing they are accusing people of. I. E. the player shanks who preformed this abuse for the benefit of joey.
You are fine.