FAQ: Add more information

[melvo]

• What is the list / project for and for whom?
• Filtering by country (If not, why do we not filter / categorize by country) / Should the server location or the provider's location be used?
• Why do we not rank providers in specific categories if there are no information?
• As soon as there is more automation, why do we (not) use properties that cannot be checked automatically for categorization?
• How does the list result in more decentralization and lower loads for each server?
• Why do we list / include all existing providers?
• Why do we not ask every provider to be included?

• Not scalable for many providers

• Why / How do we check whether a provider is responding to support requests?
• Why is there data that is not precise / incorrect?
• How do you test the registration success?
• ActivityPub: With ActivityPub, instances have a strong focus on communities (e.g., people having interest in FOSS, LGBT+ friendly, German speaking, etc.). There moderation is also a major topic (to avoid harassment, harmful content, etc.), and you can follow message from the instance only. So the choice of instance is really important, and we should take inspiration from there and provide information on moderation policy, and a short sentence describing the purpose of the instance in human friendly way, ToS is also something important to retrieve.