"Not flying well" has nothing to do with it. If you are transmitting on the amateur bands without a license, that's illegal. If you do it with any regularity, you are causing interference and some hams are better than you'd think at locating sources of unwanted interference.

There are plenty of other anything-goes bands for you to use, there's literally no reason to do your pirate radio on the ham bands. Except to get those warm fuzzy counter-culture feels I guess.