I upgraded (only on desktop) to BIAB Mac 2018, but got impatient with it and switched back to 2015 version. I think it could date back to then. (Don't use BIAB much on desktop...)

default 15:04:03.504672 +0100 gamed GKBulletinController sharedController
default 15:04:03.504785 +0100 gamed GKBulletinController+Common getBulletinsOfType:
default 15:04:03.676884 +0100 kernel + IOAudioEngine[<private>]::stopAudioEngine()
default 15:04:03.676993 +0100 kernel +-IOAudioEngine[<private>]::setState(0x0. oldState=0x1)
default 15:04:03.677072 +0100 kernel + IOAudioDevice[<private>]::audioEngineStopped() - numRunningAudioEngines = 2
default 15:04:03.677077 +0100 kernel - IOAudioDevice[<private>]::audioEngineStopped() - numRunningAudioEngines = 1
default 15:04:03.677080 +0100 kernel - IOAudioEngine[<private>]::stopAudioEngine() returns 0x0
default 15:04:03.677108 +0100 kernel +-IOAudioEngine[<private>]::setState(0x0. oldState=0)
default 15:04:03.816264 +0100 kernel + IOAudioEngine[<private>]::stopAudioEngine()
default 15:04:03.816391 +0100 kernel +-IOAudioEngine[<private>]::setState(0x0. oldState=0x1)
default 15:04:03.816474 +0100 kernel + IOAudioDevice[<private>]::audioEngineStopped() - numRunningAudioEngines = 1
default 15:04:03.816484 +0100 kernel + IOAudioDevice[<private>]::scheduleIdleAudioSleep: idleSleepDelayTime = ffffffffffffffffffffffff
default 15:04:03.816486 +0100 kernel - IOAudioDevice[<private>]::scheduleIdleAudioSleep: idleSleepDelayTime = ffffffffffffffffffffffff
default 15:04:03.816488 +0100 kernel - IOAudioDevice[<private>]::audioEngineStopped() - numRunningAudioEngines = 0
default 15:04:03.816490 +0100 kernel - IOAudioEngine[<private>]::stopAudioEngine() returns 0x0
default 15:04:03.816495 +0100 kernel +-IOAudioEngine[<private>]::setState(0x0. oldState=0)
default 15:04:04.768309 +0100 opendirectoryd Client: <private>, UID: 0, EUID: 0, GID: 0, EGID: 0
default 15:04:04.768612 +0100 opendirectoryd Client: <private>, UID: 0, EUID: 0, GID: 20, EGID: 20
default 15:04:04.769013 +0100 opendirectoryd Client: <private>, UID: 501, EUID: 501, GID: 20, EGID: 20
default 15:04:07.699562 +0100 apsd <APSCourier: 0x7fb7fbe1e920>: Sending keep alive message via tcpStream: <APSTCPStreamMaster: 0x7fb7fbf52cc0>
default 15:04:10.421830 +0100 symptomsd dampened wifi dns symptom fires
default 15:04:11.966177 +0100 symptomsd rssi (-49) or transmitRate (39.000000) changed on interface en1 for BSSID:<private>
default 15:04:14.777661 +0100 opendirectoryd Client: <private>, UID: 0, EUID: 0, GID: 0, EGID: 0
default 15:04:14.777961 +0100 opendirectoryd Client: <private>, UID: 0, EUID: 0, GID: 20, EGID: 20
default 15:04:14.778385 +0100 opendirectoryd Client: <private>, UID: 501, EUID: 501, GID: 20, EGID: 20