A couple months ago, I posted this, to test a new cipher encryption idea, but it was poorly constructed and did not work. After that puzzle fail, I redesigned it to work better, making it much cleaner, and the result is found here. Yet, I wasn't satisfied, and so have created my latest masterpiece!
This puzzle is similar, or at least the mechanism is, but this is also more complex, with more layers and twists than the others. You won't be alone, you'll have plenty of hints to help, but, I'm warning you that everything here has two meanings. Already from the tags, if you look, you can see that this puzzle uses steganography, which hides clues in plain sight. Keep your eyes open, and hopefully you'll be able to find the message, or just blindly guess, and see what's there.
You have probably noticed, at least I hope that you've noticed, something off here, that there's no block quote after all this text. I mean,,. Shouldn't there be something, some differentiation between the puzzle and its own description, somewhere to start looking so you're not completely lost, something to get you started instead of total enigma? And there is, if you look, but, look very closely.
So, while you have neared the end, I've talked about the puzzle, but apparently not given to you. Maybe that's a clue, a hint as to where your search will go, or maybe not, just a red herring to confuse you. Alas, perhaps the puzzle is already here, just not clearly labeled. Whatever the case is, you have to go, read more carefully and solve this, I hope.
The puzzle is complete, or at least it is very nearly complete now, down to the last paragraph, the last few sentences. Look to the past, see how those puzzles worked, and this puzzle should be quite solvable, though your destination will be different to solve this. Reread these paragraphs closely, find what seems off, out of place, or sounds odd and completely unnatural. Once you've done that, you can start to solve this puzzle,, best wishes and good luck!
To clarify, all the text in the original post (that is, text above the horizontal line) is part of the puzzle, and there is data hidden in that text. In addition to the steganographically encoded data, the plain text gives some hints as to what to do once that is found.
There's something odd about the sentence structure here, not quite any run-ons or splices, but some extra clauses seem to be forced, or redundant.
This is most similar to the sci-pher, but with some slight modifications.
Most of the puzzle text is talking about the puzzle itself, and it even points out that it's talking about itself, and now this hint is talking about how the puzzle is talking about itself, and now the hint is talking about itself, and talking about how it's talking about itself... When will it end?!?!
To find the answer, you'll need to look at some early posts on both this site and another, very closely related site. Phenomist is off to a very good start in finding those posts, and hint 3 is a strong hint as to what to do with those posts.
Hint 6 (final):
Using the post numbers Phenomist found, you can apply almost exactly the same process as the sci-pher to posts on Puzzling SE's meta site, with a modification to allow almost all posts to translate to a valid letter. This is the last hint, and should be enough to solve things, while leaving enough of the puzzle left to not spoil everything. From here, you're on your own.