[Plugin: SEO SearchTerms Tagging 2] Reduce SQL database

Instead of deleting keywords based on 90 days interval, why not limit the number of keywords to the post.

For instant, say the maximum keyword for a post is 10. this will greatly reduce the sql database size for SST.

Some post only receive traffic from google once in a blue moon, while others receive hits almost everyday, to delete keywords based on 90 days interval is not a good idea.