One reason would be that they are looking for a re-entry point or an initial entry and are trying to educate themselves on the stock's recent fundamentals prior to. Sort of the "look before you leap" philosophy.
After you've gone long or short, no amount of jawboning here on this message board is likely to move the stock, even though we might like to think so.
Usually, when a stock plunges downward, and somebody posts that they're "looking for an entry point", that person is a spammer. It's the mirror image of a stock that zooms upwards, and somebody posts that they bought most of their shares at $2 each 10 years ago.
In the case of Ruger, there has been no news of any kind, so I assume there is some kind of manipulation occurring. I don't know how its done. Maybe you know.