I think you also should have quoted his entire post. He went on to give information as to where to get it, explains that your result will depend on the environment, and then his personal opinion of it.
Quoted from jfesler:
Db62 given your collection.. I will brashly assume you can try out at least one sheet of anti reflective glass. PDI and Jersey Jack are the two real vendors today, and nobody else has come up with a better or affordable solution. Jersey Jack's invisiglass ships one or two per cardboard shipping container. And shipping needs to be factored into the total price.
As to will it help you? Only trying it will be certain. Some environments and some people do need it; some don't. I personally fell in love with it and have it for all my machines.