If you don't have an urge to format and color-up your log it is possible to post it as a plain text.

When preparing your post, check the box above "Subject" called "Message format".
In this case your message will not be parsed by the HTML engine and will not be broken because of square brackets. Extra spaces between words will not be removed as well.

However, this way has its limitations:
- Plain text logs are harder to read than HTML-colored logs.
- Short lines. It seems that lines longer than 60 symbols will be split up.

Nevertheless, it is still better than posting your plain text log using the standard way ( through the HTML parser ).