> Following legal advice, the Nitter project will continue.

The word "project" doesn't make a clear distinction between the repo and the instances. Nitter is on good ground with respect to the repo. The instances will be much harder to defend. From that one sentence it isn't clear if this is what the legal advice says or not.

Nitter changed their design such that it now requires an X account to scrape through. This was to stay functional after X removed guest accounts. This exposes them to a legal attack through the terms of service that must be accepted for the account, and to technical attack by blocking the scraping accounts.