Reporting them a handful of times, unless you specifically searched for the item, won't personalize your general feed in that way. When I went to the Phoenix, I'm not seeing any tires posted on the main feed.
You might want to reach out to Customer Care team to see if they have any recommendations.
@RenoHolland...When I have it set to San Tan Valley and extend it to a 30mile radius, there are some tire ads ( a few spammers), but less than 20% of the feed/page. The only real tire spammer is "Sarah" in Phoenix, but to her credit they are diff. sizes and brands, so she is following the guidelines for the most part.