We have a user on Retrocomputing who has joined the site yesterday and has posted a large number of answers (11) in a short period of time (2 hours). I've reviewed some of their posts in the First Posts and Late Answers review queue, upvoting those I've found are useful and detailed (many of them). I haven't cast that many votes today, and I'm afraid the serial voting script will think this is voting fraud.
The FAQ Q&A pair (What is serial voting and how does it affect me?) does not go into detail about this scenario. I didn't really notice this until after the fact, since I mainly look at the post content rather than the user when going through the review queues. Am I at risk of (or committing) voting fraud here?