Taking your photos down may not remove them from their dataset. If they really wanted to they could restore them for their dataset. You wouldn’t ever know.

Actually they can sue you. Anyone can sue anyone else over anything. It’s whether the lawsuit or not has any merits and will be carried on is what decides that. If you have a lot of money and want to fuck over a poor person sue them for nothing. The poors still have to spend all their money defending themselves against nothing or else they’re in contempt of court and you get the satisfaction of destroying them financially forever. No crime, but the poors still get punished.