Google searched worked really well for reddit if trying to find an answer to a technical question or the like. How well will this translate for Lemmy? I assume it would be a lot more difficult as the post could reside on any number of smaller instances.
They are very low in the search rank but I have noticed that when I search lemmy specific topics I do get “posts” from various instances in the results.
So it seems they can be indexed at least by google but I think the project could benefit from some SEO work to help community discovery from search.