You’ve got 5 responses on your post.
So I may assume you’re referring to at least 3 of them as being paid spammers?
Yes! You find a lot of people that can’t get it to work. And yes, it can sometimes be hard to get it to work, and wet filament is usually the cause.
But that doesn’t mean nobody gets it to work. Keep in mind that most of the people that have no issues with it, are not coming here to tell how good their job went.
EDIT: read this statement: Support material for PLA/PETG not sticking - #46 by Poporacer
I had to fine tune sometimes, but I printed organic parts where islands of PETG appeared on PLA supports that eventually joined the main part.
The fact you come up with a solution yourself, contradicts your own statement.
Additionally, when I look at your first image, you have some things you might want to focus on:
- The first layer looks pretty weird, as if there is no proper adhesion to the plate and the Z-offset is too large.
- Your top layer looks like the infill lines are not really properly bonded to each other.
- The top interface layer doesn’t really look very smooth. Is your flow rate properly calibrated there?