A player who doesn't think at all won't care if you show or not. They're playing their own cards and mostly for fun.

A thinking player will see that you're showing something and try to counteract you. But if it's a thinking player what's not to say he'll figure it out and won't go for it?

You're targetting people who:
1. Are thinking players
2. Don't think far enough to realize you're showing them only certain hands

That's a small range... most of the time it won't matter though because you'll be up against non-thinking players.

But I wouldn't advise it, because even though you might show down a bluff to increase your calls, someone else at the table will note the fact that you raised the flop with a flush draw and bluffed after it was busted and will be more aware of how you play with a drawing hand.

Say it nets you 1 BB in a future river call, but loses you implied odds on your draws because people start to realize that a bet from you doesn't mean a made hand and they might stop paying off as well as they should when they misread your hand.

So while it may improve your win rate or not affect it against some people on the table, it might decrease it for others.

Remember, when you show down a hand you're showing everyone your decisions on EVERY round. Unless you're going to play a hand like 72o just for advertising value, I wouldn't recommend showing a hand you played normally except for the last street.