[UPHPU] (WP) GPL License vs. Commercial use?

[Mike Smullin]

I've been considering WordPress for commercial use,
but one big problem I'm afraid of is that the GPL says
I need to redistribute the source code if I
redistribute my app (incl. any proprietary
plugins/add-ons, etc.)

I've gotten two different attorney's opinions and they
both say, "anyone we let have access to the software
for use, in any way, on our server or theirs, via any
manner, has the right to the code."

This means if I set up a WordPress blog, I don't even
have to allow you to login and post. If you even post
a comment on my blog, you are entitled to view the
source code.

Am I misinterpreting something? That seems pretty
lame. There are a lot of WordPress [based] blogs out
there. Does this mean any time I notice someone adding
something new or customizing any way, I can demand to
see their source code?

That would mean the same is true for any other GPL
licensed open-source project.

For me, this raises concerns about the license even
from a personal usage standpoint.

Can someone clarify this for me?

Additionally, I know PHP is open-source, but it
doesn't have anything like that in it I hope. People
use PHP for commercial applications, right? Or am I
wrong? 

They say "The PHP developers decided to release PHP
under a much more loose license (Apache-style), to
help PHP become as popular as possible."

http://www.php.net/license/3_01.txt

If that is the full license, it appears very short and
succinct.

--
Respectfully,

Mike Smullin
http://www.mikesmullin.com/