Multiple people posted under Ai o Ataeru Kemonotachi that the group did not want their work posted on Mangaho. Instead of taking it down, you instead posted more of their work 2 days later. So no, I don't believe you made a mistake.
It also clearly states in GDBL's Discord that their work is not supposed to be taken or posted anywhere, especially aggregate sites. Which you would have had to read in order to join the Discord. So again, no way in hell did you not know.
Now that you supposedly just learned they don't want their work posted here, when are you planning on taking it down?
I'm very confused. It almost sounds like you're blaming me for you not fixing the mistake you totally admitted to making on your own. I dunno man, I don't think shifting the blame is going to change the fact that your mistake was both 100% easily avoidable AND can be easily rectified by removing the group's work.
I'm assuming you will be taking down the group's work before you do that. I just don't get it, many people told you this group does not want you to upload their work to Mangaho. But you didn't respond to any of those messages. Instead I posted here on your message board and THEN you finally responded. So please don't blame me for your decision to continue to do the wrong thing, you literally ignored everyone.
Also, FYI, pretty much every English scanlation group wants nothing to do with Mangaho. Which is why they upload directly to Mangahex instead (and Mangaho takes posts mentioning that place down.) So when you continue to upload using another account, make sure you read the group's rules about sharing their work.
Why are you stealing work by GDBL group and posting it here, they don't want their work posted here.