What about if in 20 years your social media comment was considered inappropriate? For this example let's say it was in a "private" forum but political in nature

What about if in 20 years your social media comment was considered inappropriate? For this example let's say it was in a "private" forum but political in nature, would that also be an act of passive coercion to silence a political viewpoint? Eg: We need to make a list of all his enablers before they delete their posts...