I should perhaps preface this with a simple but unfortunate fact: Since I stopped nut-peddling, I also started losing at this game. But I'm still optimistic about turning it around.
Here's what happens: The table is playing pretty tight, and I start taking various stabs with top pair plus outs to top 2, or overpairs, then get a call. Then I think, well, ok, I was representing top set, so they can't call if I bet again... it's easy to imagine how this all creates huge problems. And, while I don't do it often enough to "spew" all at once, it does happen often enough to really mess up what would otherwise be some good solid winning sessions.
So, here's my opinion of what one needs to watch in taking stabs at pots that seem to be up for grabs: Do people tend to call when you're not in the pot? If lots of pots are being won with a single flop bet, then it's worth stabbing at it with very marginal hands to keep going (and raising a lot to build pots worth taking). But, by the same token, if they do call, then they are rather likely to have a hand. So, you really need to shut it down unless you've got something serious.
Also, just one of two players who sit down can change the table texture DRAMATICALLY (hence, the shifting gears part). When they do, and you're going to get callers on big hands, then it's a very good idea actually to have a big hand whenever you bet. It's deadly if you wait to shift gears here until you just got called for half your stack and OOP with a hand that's not worth much.