Ebay will overturn a first strike very often, they will overturn a strike if the buyer can offer evidence the seller was at fault and all those sellers were at fault.  presumably the buyer doesn't know that they can report every one of those false positives and get the comments removed while keeping the green dots.

Perhaps rather than asking for the comment to be removed they just appealed the strikes on the grounds that as the seller had left them feedback they must have received their payment.

Who knows or cares, I am just hoping that a few sellers did issue strikes so they won't be able to buy from me.

They may have not paid for a lot of items but they have only failed to pay you once so presumably you have added them to your blocked bidder list, gone through the dispute process and got your FVF back and not left a feedback comment that breaches ebay policy so your problem is solved with very little effort, something those other sellers could have done in the time it took them to write the feedback that can earn them a policy violation against their account.