In fact people do post about re-ordering instead of refilling all the time! Check out the threads on the various OP's that have minimal records requirements (like tropical, unityrx, Uspharmacy etc), they are usually the ones that do not offer refills. You should have no problem re-ordering from the same OP as long as you wait about 25-28 days from your last order, none of them is likely to let you re-order sooner than that.

As for there being a Federal database tracking scripts for schedules medications, I don't think so. Some states apparantly have or are building tracking systems to monitor prescriptions and discourage doctor shopping and double dipping, but not on the Federal level as far as I know.

There's nothing wrong with asking questions, but these are both frequently discussed topics on DB, and you will find many answers and a pile of opinions by doing some more reading in the threads!