Very good question by szopin.
And an even better comprehensal answer.

Only thing to clarify is how wide community would like to spread the safety of TM renewal.
For sure we should buy the EU renewal to be safe for running the e.V. and the servers/domains in Europe.
I agree it is questionable to renew world-wide but we already limited to mentioned countries.

It is not we want to sue anyone using the TM. But more like hindering them as a first counter step, as they would need to break the law ( which for sure in a few ciuntries will not stop them ).
And as a counter measure for getting sued!

So it is up to the community (and their wallets) to decide.
I am in.

I hope endsormeans and my post help you to decide.
But keep on asking questions, discussing or give information...