However, it is a tendency in this specific forum to recommend to a *new* player builds that require some sort of favor unlock (like 32-point builds), a splashed build, or a build that requires at least 1 TR. For the most part, it is useless advice.
A new player comes in, they are generally not going to have 32-point builds unlocked. And they probably won't buy them from the DDO store right off the bat.
Your average new player is not going to get his toon ready for a TR in a week, so any advice that requires a past life is sorta pointless.
Splashed builds, while attractive for being very generalized, have two distinct drawbacks. First, a new player does not get the full feel for any class because they never reach the capstone. They also have to spread out their skill points across various skills, and leave them a tad thinly stretched. Second, if you screw up the build, it is slightly harder to repair.
Moreover, people who put out these builds often do not highlight their shortcomings...and there are shortcomings. No matter which direction you go for a first life, you are going to have limitations. So when you put up a splashed build, one of the things you should highlight is where the shortcomings are, and how to offset them.
Plus there is a distinct difference in what environment you run your toon: solo or PUGs. Or you can add a static group in there if you like.
Solo runs are fairly straightforward. You play your toon the way you play your toon, and if you wipe in a quest you either do a different set of quests where your toon will be more successful, change tactics, or hope you get lucky on one or more die rolls. There are really no expectations on how you use your toon other than your own.
Static groups are probably much easier because everyone knows the strenghts and weaknesses of everyone else. Som, after a while, you almost end up working as a cohesive unit.
I do a lot of PUGs. In fact, for the last year, most of my play time has been spent in a PUG. The demands on a class - any class - depends on the makeup of the PUG, and that has a wide field of variation. Yeah, you'll get the occasional "every man for themselves" group. However, many of them are going to demand specific skills from specific classes, on a wide range of quests. If you're billed as a wizzy, I can almost guarantee you that you'd better do decent charms / holds / disco balls and instakills. I mean, I personally don't have a problem with an evocation or conjuration spec-ed wizzy if they can pull it off well. But I'm generally in the minority.
Just to reiterate, whether you go splashed or pure on a first-life toon, you're going to have limitations. No one, it seems, has a problem pointing out the limitations on a pure class build. But there are a lot of people touting splashed builds as if they are the end-all-be-all of the game. And a new player picking that up and going that direction, I believe, will learn a difficult lesson that they are not, especially in a PUG. I'm not saying that you, specifically, are touting a wizzy / rogue splash as an end-all-be-all build, but simply that many people do.
Me personally, I don't have a bias towards splashed builds. I'm staying pure right now because I'm getting a feel for the classes themselves as they relate to the game (and building up my stash of essences). There is only one build that I'd ever be tempted to play at this point, and that is one that Avalon created, which is a takeoff on a Death Knight, which I thought was horribly cool.