Pbb, tlak about the pot calling the kettle black. Yours is a fine example of selective logic. The original poster described noise and ASKED if he was doing something wrong and should he ignore the hiss. He did not mention if these were records that were clean or filthy, they were very old or damaged, or what kind of rig he was using to play them.
I have seen mention here of ignoring the occasional pop or tick, but not that he should ignore all noise. There are many factors that might induce noise. Cleaning the records might be a very good first step. If the records have actual damage, he might replace them with a better copy. If he is using some old record player or a decent TT with a defective or damaged stylus/cartridge, even a very modest upgrade might be of benefit. Who is to say that if he cleans and otherwise dirty record, replaces an otherwise damaged record, or plays it on a decent rig, that he will NOT hear the noise he currently does and find even better sound than the "warmer than CD" sound he also describes?
I would point out that "snap, crackle, pop" and hiss are entirely different issues. Perhaps it is more the former he is hearing and not the latter. The former can be easily addressed in most all cases, using the selective logic approaches mentioned. In my experience, hiss is generally never found as a result of the LP itself unless it is an older recording derived from noisy tape OR there is some kind of RF getting into the electronics chain of events. Nothing unique to vinyl, though. Listen to old Louis Armstrong recordings on CD. Where did all that hiss come from? The CD? Obviously not.
This brings up another point. If your CD deck lens is damaged, the CD has muck and scrapes, or you are using a Walkman as a front end, will those CD's sound great? Would it be valid for someone to post a thread wondering how such CD's sounded bad? And, would suggesting remedies in these areas constitute selective logic or an indictment of CD as a format?
As for the occasional pops and clicks. There are many recordings which I have on LP and CD and I have decent rigs to play both. The LP's nearly always win out over the CD version and, have others have said, a click here or there is outweighed by the improvement in sound. Once in awhile, to be fair, the CD in a re-mastered version will score big. When it does I can enjoy and appreciate its sound. Let us face facts, both mediums have there limitations, not the least of which is the ability of the engineers to record and transfer the masters appropriately. Along these lines, the talk of missing LF on LP's is simply a red herring. For every LP I can toss out there with missing LF, I can throw out a CD that is sterile with no dynamics.
"Making of necessity virtue is wearing thin as an argument."
I am not really sure what this means but, continual and gratuitous bashing of any one medium without objectively looking at the equally onerous shortcomings of another is also wearing very thin.