Filter to block reposted vendor ads

Someone else has already suggested the ability to block all reposts, but I would like more customization than that. I don't mind seeing reposted things from my friends if they are casual things or events, but I would like to be able to specifically filter out reposted vendor ads. I don't need to see 20 people in my feed reposting the same vendor giveaway, but I would like to see their other reposts. I also don't want to filter all vendor ads, because I follow lots of creators and I want to see the ads and giveaways coming directly from them. Reposted vendor ads are basically the only problem with PF right now.