It is not as bad as all that.
– Last Updated: Aug-23-15 8:58 PM EST –
I generally agree that it's a bad idea for practical and ecological reasons, but as to all the other stuff that seems to be the crux of your argument? No. I am very certain that you don't fish from a canoe (or hardly ever have), especially not solo, and I am also very sure that you have never anchored in current (or hardly ever have), because you are just reaching way too far to support your conclusion. Mentioning drift boats and the like illustrates that you are envisioning mush worse conditions than what's warranted. I grant you that there are plenty of situations where you'd be right, but I can promise you that if you actually HAD any first-hand experience dropping anchor (where appropriate) or HAD experience with the way that even drifting with a very gentle current your speed ends up being "too fast" the moment you see an opportunity to put your lure into a nice spot and you don't have any chance for that second or third cast, and maybe not even a really good first cast, you'd know just how benign moving-water conditions can be yet still leave you wanting to pause or slow down.
In any case, your statement about the "surprise" of a drag device getting snagged on the bottom would make no sense to you at all if you had actual experience dropping anchor in the kinds of moving-water situations I am thinking of. We aren't talking about doing this in really swift water, and we aren't talking about doing it from a surf ski. Trust me, even in a moderate current (and this is the judgement part of the problem), you'd be in no danger if your canoe ended up being stopped instead of drifting, as long as you weren't in a Wenonah Voyager or similar boat.
Making a blanket statement about how much can go wrong, no matter where this is done? The rest of the world has already proven you wrong.