It's not crazy to believe. Anderson came in at 202 against Bonnar, so I'm assuming he didn't cut weight for that fight to make LHW. If that's his fight weight, then there are many guys who cut from near 200 to make WW. It's just that he hasn't done it since 2006.
I find it more alarming that Okami was once 170 given that he's a huuuge MW. However, his frame is drastically different now than before, so I guess it's not as alarming.