To the posting issue, the administrators will undoubtedly deduct such a flagrant post-padder from his total. No worries there.
As to the actual thread topic here, the term "chase" is very much overused. Sometimes a player can weigh the odds
of making his hand against the size of the pot, position at the table, quality of opposition, and poker intuition, and come to a reasonable decision to stay with his cards. I don't think that's chasing. Just playing smart.
For instance, if you are four-flushed after the flop, you have an excellent chance of making your flush on either
the turn or
the river (only 1.85-to-1 against). However, if you miss it on the turn, your odds go up dramatically to around 20-to-1 against hitting the river suit. So, it's hard to say you're "chasing" if you choose to see the turn card. Good odds. You could be crossing the line, however, if you go for broke on a 20-to-1 river shot. Chances are that the pot will not pay you off enough to take that risk. Not just a chase, but bad business to boot.
Open-ended straights are worth following a bit if it doesn't get too expensive. Double-gutshots are as well. Drawing to an inside straight on the river with no other outs is the very definition of "chasing".