“BS_” rows in postmeta table
I am pruning my WordPress site’s MySQL database and noticed that there are thousands of rows in the
postmeta table with the prefix “BS_”.
BS_author_type BS_guest_author_name BS_guest_author_url BS_guest_author_description BS_guest_author_image_id
Are these generated by WordPress or by a plugin that I might have added and removed before? I tried googling the meta-keys as well as the prefix
BS_ and the only result I got is a Romanian webpage with random code and a few images on it.