Thank you! Even though I would not really provide trialware, I would still request a key to unlock one feature which is, as you say, against the guidelines. Nevertheless I think that this is close at the border to “trying to upsell”, since I am not adding or removing real functionality but only the “upselling advertisement” – which itself is okay, according to point 5. I think there are plugins in the repository that have a much more aggressive approach than the one I aim for…
Anyway, thank you very much for your thoughts on this!
Greetings