I remember the Batman build, and how quickly that got nerfed.
to be fair the batman build relied on evasion in heavy armor and ANYONE who had any experience with any pen and paper before they started ddo way back then knew that evasion in heavy armor was a bug and wasnt gonna be sticking around and told anyone making a batman build so....
As for build challenge... you know I remember cetus and his wf/bf build, and how much he could do with that thing vs game difficulty at the time, and how popular it became, and what was funny about it was that only a few people could make it do ANYTHING anywhere near what cetus could do.... I can kinda point to this over and over with these "super builds".... its almost always only a few who can make it dance like that. To many people dont take player skill into such discussion of builds. I've played with 2 guys who i could do the random character roll game with for 3 classes and im fairly certain the two of them could still duo r8 with wahtever character they were handed... i've listened to the break down of all the stuff one of em is up to during a 2 min dps test.... and I can only think that I couldnt pull off that level of Rainman Keyboard Cowboy Bullshlaga if i was 15 again and had enough caffeine in my system to make me hop high enough to wave to the guys in the ISS is someone said boo....
That said even when that is the case it doesnt stop the joke these people call "balance" from bringing large metal things to various things invollved in those builds.
So on the next day that someone releases some weird interaction build that they're soloing every quest on the game at r8 with.... you and me and 98.8% of the rest of the people who would see a build or a video or just something like poor phil who gets handled about as gently and as often as a dev does somethinig around here... yeah it'll be unlikely you'll just pull it off....
You know there was like 2 builds that anyone could do, and it would kill anything, one was a bug, the other was original shiradi spammer, and after the first nerf it was where it should have been, but they beat that thing like like mike tyson in his prime smacking around like your local gym guy. All shiradi did in the end was beg for death and then tilo figured out another bug for it, and they beat it some more. So yes, shiradi alone should tell you that if a build becomes common knowledge to the point that alot of forumites think its op, they will scream about it for years.... You would see people on here talking about how op shiradi was when at a point you could empty 10k mana at a 100k hp mob and you couldnt kill that mob... and people still would scream about op... and something in shiradi would be nerfed again.... heck new shiradi stance has been nerfed 2 or 3 times, to the point they had to redesign it AGAIN.... then nerft it AGAIN.
Point being, if there is a build thats working as intended, and can do what the op is asking... NO ONE IN ANY SANE CAPACITY WILL POST THE BUILD