What IBM's terms say
IBM's terms of service and privacy policy have 5 rated points: 0 serious, 1 bad, 3 worth knowing and 1 good. 5 apply whenever you use the site, signed in or not; 0 only once you have an account.
Whenever you use IBM
Bad 1
Your personal data may be sold or otherwise transferred as part of a bankruptcy proceeding or other type of financial transaction
Where it says this ↗
Worth knowing 3
The service assumes no liability for any damages the user incurs
This service assumes no liability for any losses or damages resulting from any matter relating to the service
Where it says this ↗Your personal data may be aggregated into statistics
Your personal data is aggregated into statistics
Where it says this ↗Your IP address is collected, which can be used to view your approximate location
Where it says this ↗
Good 1
When the service wants to make a material change to its terms, you are notified at least 30 days in advance
Where it says this ↗
If you have a IBM account
No account-only points rated.
The documents
Ratings by ToS;DR volunteers; they can lag behind the current terms. Not legal advice.