Thanks for your feedback. I'll respond to your points individually.

I do not understand how the link to the level of VFR flights is relevant to SkyDemon.

In terms of missing airfields, I will forward this to the person responsible for comment.

I do not understand how FIR sectors are relevant and why they should appear in the SkyDemon chart, perhaps I am missing something?

The "protection zones" you mention (1.2.1) seem like the kind of thing we would normally include in our charts but I can find no reference to them in the AIP (there isn't even an entry for EFFO). Can you point to the source of this data? Same with noise abatement areas, if they are promulgated in the AIP with their coordinates.

I do not understand why we would add closed runways to SkyDemon?

We will add the protection zones from ENR5.3 to this week's chart update; thanks.

Hello, I found some issues. But hey, only these!
I verified all airfields in Finland and read finnish AIP to found these.

THE LEVEL OF VFR FLIGHTS
4.5 VFR is fixed in FPL.
https://ais.fi/ais/vfr/gen_en/flight_plans.html#1003270

12.6 missing airfields, eg. EFMN, EFLL, EFLN, EFPA, EFVL, EFVP, EFVI
https://ais.fi/ais/vfr/aerodromes/aerodrome_toc.html

1.3 Missing FIR sectors, 1-7 FIR sectors
https://ais.fi/ais/vfr/gen_en/airspace_classification.html#1010287
and sector frequencies. See "TAMPERE RADAR" in
https://ais.fi/ais/vfr/gen_en/air_traffic_services.html#1003963

1.2.1 Missing Protection zones eg. around EFFO
https://ais.fi/ais/vfr/gen_en/airspace_classification.html#1003418

Closed RWs are missing like EFHJ, EFHI, EFJP, EFMP, EFVU
See link.
http://www.lentopaikat.net/english.shtml

Missing noise abatement area around Helsinki downtown. See VAC.
https://ais.fi/ais/eaip/aipcharts/efhf/EF_AD_2_EFHF_VAC.pdf
There are several abatement areas in Finland. Above is one example.

Missing two protection zones for industrial plants.
https://ais.fi/ais/eaip/pdf/enr/EF_ENR_5_3_EN.pdf

Nice to have feature
-Visualize upper air sounding balloons mentioned in the previous link. Would be nice if wind direction is used to shade probability of area where it might be.
- route warnings about bird migration. See.
https://ais.fi/ais/eaip/pdf/enr/EF_ENR_5_6_EN.pdf

Br.