Hi,
It's sad when something so obvious simply doesn't work. You wonder how long the developer actually invested into doing this right.
I can use the instapaper trigger to set off a flow when a bookmark is added to the Home folder.
But when it is added to a sub-folder - forget it. I tried mulitple folders and I removed spaces and wierd characters from the folder names. I tried for days. The trigger takes the folder name as a parameter but it certainly does not poll it.
This added to my other unanswered problem of the description being blank when a bookmark is posted, make instapaper by flow totally useless.
Cheers
G.