Thinking about the semiotics of street stickers. A weathered sticker on a telephone pole indicates that you can put up a sticker and it will remain undisturbed long enough to gain some weathering. A hand-drawn sticker reminds you that you don't need a factory to make stickers. A sticker made from a mailing label suggests that mailing labels are easy to acquire. (They are in fact free at US post offices.) All of this completely independent of the message of the sticker itself.
This is why I tend to be lenient toward even some of the more libbed-out stickers in my city, because regardless of their deficiencies in radicalism they still send the message that you can be disobedient
I still destroyed all the ones comparing Trump to Monica Lewinsky from a few months back though. Those ones are actively harmful enough that their existence is unjustified. Leave Monica alone.
Do listen to her podcast though. I don't know a lot about it but I listened to the first episode and liked it.