I was blocked.

[GM-Ayu]

[*]Do Not Bot/Macro
Botting will result in a permanent ban of all accounts and any type of macro will result in a permanent account ban, no exceptions. Failure to pass the botting/macro test from GMs, regardless of "actual reasons," will be treated as using bots or macro programs.

[*]No AFK Leveling/hunting
No one is allowed in anyway or form to level/hunt AFK with the means of any pet, homunculus, @autotrade, item, skill or card.

[*]Regarding Alchemist/Creator's Homunculus
The heRO AI is sure to comply with our specific rules regarding homunculus, using it is recommended.
http://www.pandoraonline.net/AI.zip
Players are also free to use their own written ai, as long as they follow server rules.

- No killstealing!
The homunculus is bound by the same rules as its owner, and must not attack a monster that belongs to another player.
- No auto-alchemist skills.
The AI is meant to control the homunculus only, you are not allowed to use it to control your alchemist/creator character.
- No AFK leveling.
Afk leveling will be considered the same as botting, if you must go away from keyboard do so in a monsterless map or send your homunculus to sleep.


Underlined section added for emphasis.

Setting a time by default is very exploitable. Let's say that 5 min the homun will stop functioning. You can easily setup the macro to bot for 4 min, move around 30 sec to refresh the timer, continue for 4 min and so on to bypass it with ease.

Thus why, it's pretty important to actually read the rules and not just ignore them. heRO guardian in svn update also got the identical rule list too the moment you create any character, so there's really no excuse to say, "but where's the rules? not everyone goes on the forums." (even that one is a bad excuse), not to mention the bioethic quest also mention the homun rules.