It seems that you have started an incorrect start, many of the above accounts share the same date, some of them created on the same day, others have the same "Last Active" or "Local Time."
hugeblack is actually implying that there is a lot of bot post or probably multiple accounts under one control that posted on your thread after you created it. It's either: you paid them or they used this thread to increase their post count (which is highly unlikely because there's merit to rank up). You should clarify this if it's not the case.