That's not what the op bought. He was sold what was likely a $90 rope assuming he bought the entire 30m rope. You can get webbing for ~$1/m or 8mm cord for ~$1.50/m, either of which are just as safe and cheaper. Your "savings" of 10 cents per meter is only a savings if they last the same amount of time. I'd be willing to bet that no matter how well you pad the edges, the dynamic will wear out more quickly than the static. Even if that is not that case, it'd be worth the 10 cents/m (a whole $3!) to me to not have my anchor material stretch every time it was weighted.
You keep repeating this like it's something different. Nobody has said otherwise. No matter how much you want it to not be true, only one person has said they wouldn't climb on it. Everyone else has said the EXACT SAME THING. The only difference is that the rest realize that there were better uses for the $$ than a 8 mm dynamic rope for TR anchors.
i buy it by the meter at MEC where its CHEAPER
than the equivalent static cord $2.50 vs $2.60 http://www.mec.ca/...n-8.0mm-dry-rope.jsp
vs ... http://www.mec.ca/...-8mm-static-cord.jsp
for these kind of anchors
no doubt im a dead RCer walking ... especially as its not "good value" despite costing less