Thanks for the compliment.

1. There was a messaging function on the first version of Busy. But now with the Beta of v2 they got rid of it because nobody was using it. Instead, people use SteemitChat or even better Discord. On SteemitChat you will find the majority of Steemians but you will find more action and groups on Discord. Beware people who ask you for money there because there are imposters as well. Come and find me on Discord and we have a chat. :)

2. This can have many reasons but is for most likely related to a 3rd Party app that you have giving access to your account. Try to double-check Streemian, SteemVoter, SteemAuto (probably not because newer than 3 months) for example. If all doesn't help you can reset all your keys and make sure that any association to all 3rd party apps will be killed 100%. I have never done that before so I am not clear on how that actually works but I know this feature exists! That is what you need your private owner key for as far as I know.

But on Steemed it looks like only Busy has your posting key: