When flying close and east of the Schiphol CTR You "enter" a massive circle (TSA22) that partly protrudes into the CTR. SD warns accordingly, however this is a memorial zone which is active only ONE day a Year! (Oct 4th).
There are a few more circles like this inside the SPL CTR.
Why display this year-round and alert and scare people 364 days for nothing?
Our airspace is already cluttered enough, chaotic if You will, I can live without these things.