I can't find it now, but there was a post on HN where someone shared a report regarding their social media activity. It was compiled by a firm that offers to "research" potential employees.

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.