Hello. I see many don't let their wordpress blog's tags be indexed. They use noindex on them or even some category pages which is an option available in ALL IN ONE SEO. Just wanted to know what difference does it make ? What is good for SEO, either letting the tags be indexed or not ?
Hi let the tag to get index because which helps your blog to get good serp for related keywords you used as tags.
Some say that if you let both tags and categories to be indexed then Google could considere that as duplicate content. If you use the same keywords for creating pages also, then suddenly you have the same words phrases in three different locations. Just let one to be indexed. Be careful about archives and related posts.