I signed up over there, I'm going to see if I can't pound some sense into them. Any tips on where to start?
Don't bother. The poster responsible for the worst of the stupidity (unsupported 200 gigatons cracking a planet and arguing that Bane could beat Vader), SuperSaiyaMan12, was temp-banned until the 19th. There are two main problems between CBR and StarDestroyer.Net. The first is that CBR has an attitude of unfair dismissal towards any arguments from SD.Net; this developed from hearing about how it has been seriously argued here that Han Solo could beat Q and various Sith could beat SSJ3 Goku. (On CBR, "The writers intended Q to be that powerful" is a valid argument. See below) Intelligent debaters on CBR will recognize the fallacy and accept proper arguments, but most intelligent debaters on CBR don't bother with sci-fi versus debates anymore.
The second, and larger, problem is that the methodology used at CBR is fundamentally incompatible with SD.Net. Basically, CBR does not suspend disbelief. Characters are considered as fictional and their bad showings, such as anytime Superman forgets that he can use super-speed to throw hundreds of punches in a second, are thrown out as "plot-induced stupidity". Also, posters usually don't bother with computing numbers for most feats because the feats of most characters are so inconsistent that it's all pretty pointless. Determining who beats who is a fuzzy matter of looking roughly at various high-end feats and comparing performances against benchmark characters. And so on. But the lack of suspension of disbelief means that such things like TDIC high-end calculations are valid and the ICS figures are disregarded by some people who refuse to believe them since we never see 200 gigaton explosions in the movies. Anyway, I just don't bother with ST vs. SW debates there anymore as they're now a matter of screaming about what is valid evidence and what determines canon.