Humm let me see, So roughly Shithead like Bald Reimu became slave for other clan / predator to ensure the safety of entire clan and some reward, an agreement ?
The previous shithead Marisa chief brought all the clan's shithead to a war with another clan. They are defeated.
New leader Patchouli made a pact. They will supply koyukkuri to the other clan to be used as slave. Not written, but seems like sending the shitheads are in the agreement.
The neighbouring clan want slaves, but baby yu are useless. So they want a clan that can raise those babies into at least koyukkuri. Then they will take care of the slave training.
Business deal ? Marisa's clan seems to be smart enough to appreciate a win-win relationship between both sides. Patchouli supply them with slaves and Marisa pay with percentage from the auction. Patchouli actually got more since she can also dispose the shitheads before they grew up.
The auction is between Marisa and the other yukkuris, probably from other neighbouring villages too.
Patchouli's explaining spawn's incessant screaming alerted the humans and enemies even though everyone wants her to stop. So they didn't care for her because she is important but troublesome to the others so they placate her to stop.
i thought it was because she was scolded by the remilia
KillAllYukkuris made that comment back in May 24th of 2015, but the key line where Flandre says "I'm shorryyy" was not translated until 2017-11-24, thus, he made a certain conclusion about what was happening without the translation being available yet (as it had not been fully translated yet back in 2015 when he made that comment)
(This is the key line because it shows that Flandre was crying out of shame over her unruly behaviour - probably out of respect / filial piety for her grandmother, and not because her teeth were damaged in any way from chewing on the Reimu)
(Edit: Further corroborated by the fact that the Ko-Flandre refers to her grandmother with the "Sama" particle which is very respectful)
A few lines were translated in 2015, but that one where Flandre apologizes for being too rough with her new toy had not been done yet.
Updated
BoBoBo
Mister Humans, the factory, predator yukkuri, mister cat, mister dog, mister birdCrying voice you see, is inviting enemies to comeThad's becaze...
Ebery one knows Remyu is kyuche and impordantMukyu-
That's it, that's itWhy is everyone feigning ignorance...I'm shorryyy
YuboeeeeeeGranny!Hey nowBOOM!!Up until now whenever something don't suit you, it always going your way when you cry or grumbleDon't they understand that weimu is crying...?That's improper, what happen to your promise to treasure itThey didn't do it for you. They listened to your demands because your crying will alert the herd's enemies.
In other words you were just troublesome to everyone else.YUSomeone like you wouldn't have understood unless you experienced it firsthand.It's not the first time you heard this. Your parents told you over and over again.
But you yourself ignored it all.Everyone who hears yukkuri's crying voice will attack.Sorry wrong.In reality people listen because you cry...
Why do you think that is?Wasn't it because of your shouts that humans found you?