FZ1 2nd Generation Brakes upgrade

[b1k3rdude]

has caused agitation of the fluid by shaking, over pumping or just bad practice, you'll get micro bubbles.

Contextually I don't grasp how or why would someone would do this, the ABS unit would be bolted to the bike. But with regard to over-pumping, how exactly..?

• Just bleed the system as normal but slowly and deliberately, gravity is your friend here, so is a good vacuum bleeder with experience and skill. 
  
• Brakes aren't DIY if you don't know what you're doing, many think they do until they get on a bike with proper bled brakes.
  

• I have one of those, but either I didn't take enough time bleeding the brakes or need to understand exactly how and where I was using it incorrectly.
  
• I assume your referring to ABS-based bracking systems? as non-ABS is DIY imho and should well within the scope of most competent home mechanics.
  

And regarding mechanics that say they know how to bleed an ABS systems, how do we tell they actually do know and aren't like in my 2x instances where they  didnt.