Yellow Clown Goby, not so safe?

[born]

I have a yellow clown goby in my 125G, hes awesome, great personality.
He always hangs around on one of my islands that has a colony of pocci on it.
I noticed that the pocci is starting to die on certain parts of it.

Whenever I take sps out of the water for transferring or whatever, once they get that slime on them, my clown goby goes right beside that colony and I've even seen him kinda pick at it and bite the SPS.

So since my clown goby hangs by that colony all day and ive seen this little guy go for my sps before. Are these clown gobys actually reef safe?

Liveaquaria says so but I also read the reviews and a guy claims he's had these clown goby sps eating issues as well.