Let's put this in a more positive way.

This is great! Have you considered adding a Piwik-compatible option?

Piwik? I don't want a Piwik-compatible option. I'm not even complaining about Google Analytics, I'm just saying it doesn't sound well to just tell people to open Google Analytics.

I would complain the same way if a website promised a guide to calculate interest rates and started the article with "Open Excel...".

Adding a "For this to work you'll need Google Analytics installed in your site" notice would solve everything.

Why is that necessary? The "open Google Analytics" part makes it clear enough. It's not as if they're an interpreter that is going to crash when they see something they can't logically do ;)

Step 2 begins with "Open Google Analytics"

Yes, so let's assume the reader isn't aware they have to integrate GA (or perhaps they don't even know what it's for).

1. They perform step 1, ok.

2. They open GA (what for? well let's just open it)

3. Click the bookmark, ok.

4. Strange, nothing seems to happen.

5. Fiddle a bit. Maybe it's my website, let's restart the server.

6. Reaction, eventually: this sucks.

> (or perhaps they don't even know what it's for)

Then they are not likely going to need this service in the first place.

Seems far fetched. I bet the amount of people who - own a site - are unaware of GA - execute step 1 without reading 2 ... and... - know how to restart their server ... is exactly 0.