One idea I've seen is running through translation services. IE, convert to spanish and then back to english. But unless we have good offline services, it defeats the point.

Maybe not very practical, but to combat targeted writing analysis on the internet you could try running such analysis software on your own writing to find out what makes it stand out. Work to make the writing as "bland" as possible, perhaps with aid of software translators or filters.

Maybe you could run all your communications through a translator twice (e.g. English -> French, French -> English), and fix any typos?

It would hopefully keep the sentiment while changing the words.