After using one of the tools which helps to pick strong keywords to match my listings to what buyers are searching for, I realized that if everyone used these tools, the playing field would eventually be a level playing field. One of the features allows you to view all the strong keywords of any competitor that you interested in.
For instance, if I did an evaluation of ABC Company and a product that I was competing with had a strong keyword of XYZ Keyword, I could then enter that keyword into my products, too. If I hadn't thought of the keyword XYZ Keyword, then I just added another competition to that keyword.
I can also look at the probability of the keyword XYZ Keyword. For instance: How many products are competing with the keyword XYZ Keyword? How many searches are being done each month for the keyword XYZ Keyword? The obvious choice of a keyword is low amount of competition and a high number of searches each month. If my competition was fortunate to think of the keyword XYZ Keyword and enjoyed a lot business because of low competition and high searches, now they had 1 more competitor.
What if 500 additional competitive shops with a similar product used the same tools? Eventually, the leveling of the playing field will occur. Fortunately, not all shop owners do that kind of evaluation... not yet!