More ZDDP & valves seating?

[FastSUV]

I saw a comment down below on this vid that suggests that in addition to the "risk" we all already know of ZDDP eventually poisoning emissions systems (if the motor uses oil), that another thing could be affecting valve seats? Probably just some guy's opinion but since I had never hears that before and I am using HDEO right now I thought I'd ask for confirmation/rebuttal

http://www.youtube.com/watch?v=UkvLVNI6T-s

 

[Steve S]

Absolutly not. There so much stuff on the web that is just garbage and people believe it with out thought or discernment.