I want to disable gzip compression for all blogs. Since I cannot find option for that here is what I already done.
It is a bit hackish but non-the-less:
* disabled gzip_compression(); after wp(); in wp-blog-header.php
* change gzip_compression() function to return false no matter what in functions.php
* changed gzipcompression's option_value to 0 in wp_X_options database table
* Played a bit with TinyMCE files since they have some gzip lines but left them unchanged because I do not think they are important for that issue.
* Deleted cookies and browser's cache. I am unaware if there is any caching on server side by default on wpmu.
After that main page of each blog (note: assigned to home.php) is still served compressed.
Please let me know if You have any permanent solutions or just some ideas what else could be done to resolve that issue.