wow! definitely don't see any damage! But I had instances where people had lost some colonies due to the red bugs, but maybe in situations your water quality might be excellent. By the way awesome looking tank!
Here some info I found
The next pest has been getting a lot of attention lately because of a new treatment people are trying....."Red Bugs". Red bugs are a type of parasite (happens to be a species of pod) that infects Acropora sp., and are a yellowish color with a red spot on one end of their bodies. For some reason, however, they have not been found to effect A. yongei or other SPS. There are so many different varieties of Acropora it is hard to say which colonies can handle the infestation and continue to grow, or which colonies would be destroyed by the infestation. It is also unclear as to how these bugs parasitize. Are they eating the flesh of the coral, or are they eating something else that is parasitizing the coral? What hobbyists first notice is a loss of color to their coral, eventually the coral becomes very pale, and some die.
If you happen to have red bugs it is important to not "share the wealth" when frag trading, or if you do trade frags - inform the other hobbyists of your infestation. Inspect all incoming frags for the red bugs.
Some methods of treatment - removal of the infected colony, placement in a separate container, and blowing the coral with a powerhead to dislodge the parasite. Another mode of treatment would be to remove all Acropora sp from the system ----> then any new colonies introduced to the aquarium potentially would have a parasite free environment. There of course are various dips to try, as well. The last mode of treatment I'll mention is getting the attention......the use of Interceptor (heartworm preventative for dogs). The drug has been shown to be effective for killing off the red bugs, however, it will also kill off pods and nematodes in the system, as well (unless all Acropora corals can be removed to quarantine for treatment). The long term/residual effects of this treatment have also not been noted.
For more reading on this topic: An Aquarist's Experiences with a Species of Acropora Parasites by Greg Hiller
An Aquarist's Experiences with a Species of Acropora Parasites
Still don't see damge or poor color.
I also agree with tdsounds, water quality i'm sure plays another factor so good water + rb's = no damage atleast in my instance 
