... don't even know why they made the damn things, posers%)
True enough for a truck, or even a normally street-driven vehicle. They were originally used (as far as I know) on drag racing street racer type setups. You know, short runs, lots of maintenance, few miles and lots of willingness to replace deteriorating filter elements. And on a show car that drives 30 miles a year, it's not a problem, unless you have tuning issues and backfire a lot or dump excess fuel into the carb.
Then you started seeing them on more and more hopped up street performance cars, and those that just wanted to look like them.
They were relatively high flowing setups, with a good transition that allowed for a pretty straight shot down into the carb with no bends or restrictions. They were small and lightweight, simple to use and maintain, and relatively cheap. Easy things for poor hot-rodders to understand back in the day.
Unfortunately, those benefits attempted to transfer (on paper only it seems) to new apps when those people and their children and avid performance magazine readers started putting them on their family Buicks, kid's hand-me-downs, and the new family truck that did lots of work and went off-roading on the weekend. Not to mention the teenage son that thought it'd be cool to put one on dad's work/ranch truck to give it more performance.
Too bad they didn't factor in the lack of fine filtration and dangers of deterioration that type of element sometimes experiences.
Motorcycles did, and still do, use fine-grain oiled foam elements to good effect. Uni has been around for 40+ years making great filters. Problem is, most truck owners don't follow the same rules as do, a conscientious dirt-bike rider, who cleans and re-oils the filter literally after every outing.
Truck owners? Not so much...
Hopefully though, Edelbrock would at least have updated the material they're using to a finer filtration porous element. The right foam can actually filter very well. You just have to clean them a lot.
But the ones I've played with in the past would have been lucky to filter out a pebble (and that was because of the steel mesh part!), much less a pound and a half of Clear Creek silt (some of you know what I'm talking about) and keep it out of the engine.
At least that first one that the OP linked to is a much better choice.
Paul