Thanks. That cleared me several things. These L2 discussions are very good information for us less experienced. These things may be self-evident to many of you, but total gobbledigob for many of us.
But even I could see some weeks ago that "something is going on" when I looked at DIAAF L2 during a session. There was VFIN sitting at ask 0.0014, and everytime somebody bought those shares and the ask was 0.0015, he jumped back with his 0.0014 hour after hour. I was interested in DIAAF (they make recyclable plastic), and they had a good PR the same day. But luckily I had some knowledge already then about L2 behaviour, so I did not buy. But I think there are many of us, who do not read so much L2 - only the price.
But don't spend too much of your weekend time to these questions - we can discuss them during the week. Have a good weekend all!