Hi there,

A 'Google-AdWords-guy'? Was he a google employee or just somebody trying to offer you a service?

1. Regarding the capitals, You should optimise it so it reads easily and IT'S NOT SHOUTING AT YOU LIKE THIS. (Sorry for the capitals; thought it would make my point clearer)

2. If your title texts looks legitimate and words are not all in capitals unless they are abbreviations such as 'SEO', you should be fine.

3. I doubt anyone will take you seriously if your text doesnt look legitimate. But thats my opinion. Again, try to bring attention to words which are key to your topic or subject but do not make them look out of place on purpose.

For example if your topic was ice cream in the london area try; 'Ice Cream in London' or 'London Ice Cream'. Simple and effective.

Hope this has cleared the issue up for you.