Why you shouldn't use exhaust wrap

This

 

Unless you're hiding that in the first place...

Ouch.

 

No Doh!!

 

When that wrap gets soaked with water it just holds it for days. I used exhaust wrap before but I never thought about this before, but I store my bikes indoors.

 

That's true, but in dry climates its not quite as true. Where I am, 1) it hardly ever rains, and 2) humidity is usually so low that things dry out in minutes.
Its like me saying that K&N air filter will ruin your engine. Out here the dust is so bad that "more air" (allows more dirt too), will shorten engine life. But in damp climates where dust is not an issue, it is no problem.