[morokhovets]

Crawlers will see loading indicators instead of content. This is not what you want if you want your content indexed.

[dgb23]

I suspect you misunderstood the article:

The component in question should not render content during build time, it is a UI element that represents the login state, which you certainly do not want to have pre-rendered at all, let alone be indexed.

[morokhovets]

I misinterpreted your comment. Thought you were talking of SSR pattern in general.