What is this? Can we please have some way of receiving an explanation? This seems like a system to punish people for leaving too many good answers. Although I did receive a lot of upvotes in a short time, I assume that reflects someone's genuine approval.
If you mean today, that was an automated check - no individual moderator was involved, but those checks are very conservative - and this has triggered twice in a matter of days. If a random user suddenly starts upvoting you overwhelmingly and consistently for a sustained duration, then yes: that will be treated as suspicous. Because it is.
On SO, the emphasis is on a post, not a user. If suddenly a user upvotes all your answers... that is not normal site activity.