Hello Kyoko9240,
yes, most of us probably agree about the general etiquette of play, the hard thing (well for me at least), is to find the fine line where to call it a deliberate stalling and when it might be an honest new player’s attempt to discover and understand how invasions (don’t) work.
We already have an AI referee of sorts, and the exact limits are currently also discussed here, which you might want to check out and/or offer your opinion: