I don't doubt that this happens, but I think so much less of someone that would go into my Twitter and assign a negative ranking to each swearword in an effort to compile a metric of "me", that I wouldn't want to do business with them.
In that regard, adding more motherfucking swearwords in my bullshit comments serves as a great fucking way to deter any asshole cunt that thinks such metrics are a good goddamn idea. Dick pussy ass.
If I remember correctly, it included a twitter account that was not obviously linked to the persons name.
There was an entry for every (re-)tweet that contained swearing, associated with a negative score.
Also, if you're swearing on public platforms, you almost never know if/how the platform itself may react. Maybe it affects the likelyhood of your contribution(s) being shown to others.