what does this red star mean?

That star represents your MyLot Reputation Rating. Starting today you will see how well you work with us. So better have more quality posts and responds. Try to point your cursor to the star, then a rating will appear such as 87/100. Don't worry, you don't do any mistake here. It just shows that you have reached your 100th post. Keep it up my friend! Your next goal is to reach the 500th post. This will enable you to use copy and paste feature, and upload more images or pictures during a discussion. Goodluck!

Congrations for having a red hot star with number nine which is the 2nd highest rank in mylot. Wish you can be awarded the highest rank of the blue star with number 10 very soon.

i think a red star is a good thing, it should have a 9 in it. You hit 100 points so you now have a 9 star reputation. I too managed to post a discussion twice. Dont know how it happened but it did blessed be

It's your star rating, once you reach 100 posts you get a star rating from 1-10, a 10 rating is the best, that you are starting out with a 9 is good, it means your posts have been well received so far. Keep up the good work ;).

That's mean you've been writing good quality posting. I just got mine today as well, not as good as you though since I only got a green/yellow (I forgot) star with number 5 inside. Congratulations to you. May I know or do you mind telling how much is your earning at your 100th posts?