What Pixiv's terms say
Pixiv's terms of service and privacy policy have 29 rated points: 1 serious, 5 bad, 15 worth knowing and 8 good. 21 apply whenever you use the site, signed in or not; 8 only once you have an account.
Whenever you use Pixiv
Bad 5
Per the service's terms, you may not express negative opinions about them
Per the service's terms, users may not express negative opinions about them
Where it says this ↗Instead of asking directly, this Service will assume your consent to changes of terms merely from your usage
No guarantee is made regarding the correction of software errors
The service does not guarantee that software errors will be corrected
Any liability on behalf of the service is only limited to the fees you paid as a user
Any liability on behalf of the service is only limited to the fees you paid as a user or JPY ¥1000
The court of law governing the terms is in a jurisdiction that is less friendly to user privacy protection
The court of law governing the terms is in a jurisdiction that is less friendly to user privacy protection (Japan)
Worth knowing 11
Other rules, terms, conditions and/or guidelines may apply
Other applicable rules, terms, conditions or guidelines
Where it says this ↗The terms for this service are translated into different languages
The terms for this service are translated into different languages (English, Japanese)
You agree to comply with the law of the service's country
You agree to comply with the law of the service's country (Japan)
This service cannot be held responsible for disputes that you may have with other users
No guarantee is made reguarding the accuracy and/or reliability of the information provided
The service does not guarantee accuracy or reliability of the information provided
Do Not Track (DNT) headers are ignored and you are tracked anyway even if you set this header
Your IP address is collected, which can be used to view your approximate location
Your personal data may be aggregated into statistics
Your personal data is aggregated into statistics
Invalidity of any portion of the Terms of Service does not entail invalidity of its remainder
The court of law governing the terms is in location X
The court of law governing the terms is in Japan
Harming minors in any ways is prohibited
Good 5
Information is provided about how your personal data is used
Information is provided about what kind of personal information is collected
You can request access, correction and/or deletion of your data
The service claims to be CCPA compliant for California users
The service claims to be GDPR compliant for European users
If you have a Pixiv account
Serious 1
You waive your moral rights
Worth knowing 4
You cannot distribute or disclose your account to third parties
You must report to the service any unauthorized use of your account or any breach of security
You are prohibited from posting content which promotes violence or politically or religiously extremist values
You must keep your information up to date and accurate
Good 3
You are prohibited from publishing any third party’s personally identifiable information without their consent
You maintain ownership of your content
The service has non-exclusive use of your content
"User authorizes the Company to use information which user posted in the following ways: [...]"
The documents
Ratings by ToS;DR volunteers; they can lag behind the current terms. Not legal advice.