I took a look at the newest comments on the top 10 videos on youtube telling people how to automate peer review using tampermonkey. I did not see any complaints from people getting banned. If it is happening, it is extremely rare.
Now yes, according to IMVU's TOS it is against their rules to use bots on IMVU and tampermoney is sort of a bot, so if they find out you could get banned, but I have not seen any signs of IMVU staff cracking down on botting peer review.