Does Google hate the words "id" and "hide"?

SEO company advice - what are your thoughts?

[wxgmedia]

Hello there, wondered if any of you could help. I'm no SEO expert, but I have been developing websites for some years. I don't do bad by just trying to do things right.

Anyway, a client of ours has gone to a SEO company - they've had some interesting input, none of which I am dismissing - would like your input/thoughts.

Firstly; we have been recommended to not use page.php?id=### ...been told Google hates "id" and should use "keyword" (page.php?keyword=###)

This sort of makes sense - I can see how a "keyword" in the string could work better. Been told that Google won't list a page with?id=

Does google hate the word "id"? (I have sites listing OK with id=?)

(I am aware that mod_rewrites are better, and that *.php?id=###&var=###&var=### isn't recommended)

Secondly; via the CSS I have some bits of text hidden. For example a button. The <ul>, <li> etc. is CSS'd up to display an image with a rollover, I've put a hide class on the <strong> - so the text doesn't display, and if the CSS isn't there - you can still navigate the site.

Roughly...

<ul>
<li><a href="page.php"><strong class="hide">Link Name</strong></a></li>
<ul>

.hide {display : none;}

As you can see, I'm not trying to spam - this is for function only. I've been told, that I can do this as long as I don't call the class "hide" or "hidden" etc. Is this a fact in the SEO world?

Thirdly; Page weight - the site in question is CSS, most of the site graphics are pointed via style sheet.

I've been on a couple of sites with "page weight tools" - some take EVERYTHING from the CSS (even for styles that aren't displayed on the home page) leaving me with a page weight of about 200k. Other "page weight tools" just take the actual content of the page, leaving me with a page weight of about 30k.

Question is, which should I be following and what is the recommended page weight these days? Does Google even care?

In summary:

1. Does Google hate the word id?
2. "hide" as a class name, is this bad?
3. Page weight size - 200k or 30k - does Google care?

Look forward to your feedback.