Sort:  

I would recommend to use at max one (better none) <h1> (or in markdown #) per post, because the tag is meant to mark the (most important/relevant) heading of the article. I know that many people here on Steem don't know about this, so maybe we should talk more about these things...

Search engines like google say that people can use as many h1 tags as they wish to, but I'm pretty sure (from a bot perspective) that it has an impact on SEO. Nearly all high ranking pages contain exactly one h1 tag.

Since most frontends already display the post title in a h1 tag, there is no need to use h1 in a post at all. So, to sum it up: Best for SEO would be to never use it in a post, I think.

Less of the ###

I'm not sure, if you mean this, but the converted output of a post is always in HTML format, so it does not matter, if we use markdown in our posts. The spiders only see the HTML ;)

I thought the hash was not good, so thanks for clarifying that.

I know that many people here on Steem don't know about this, so maybe we should talk more about these things...

Absolutely. A template for a SEO piece of content, at least as far as format, is worth presenting.

Thanks for the input, and gooo Steemworld! :)

I think paulag also pointed out about the canonical linking etc, just based on interfaces you might already have indexing issues due to duplicate content. With many of them then going so far as using ajax to load content is that then following practise? When it comes to SEO the interface has a lot to do with it, users have the control over not crossposting to other chains but if linking is done right then the steem one would be the source and will rank , all users right now have control over adding alt tags to their images but what does it matter if google can't read the content due to how it gets loaded. Just a thought and a bit of a generalization. and like steemchiller says one h1 etc since that shows hierarchy of content etc.

Since most frontends already display the post title in a h1 tag

I didn't take that into account, that's an important aspect.

Wait. Google isn't into ###? I had no idea.

### translates into <h3>, so that's what Google bot sees. It is as important as a sub-sub section can be in a document.

Nice, will be on the lookout for your content.

Not much coming from me at present. Too busy with the real life content for Steem, but always looking in.