what is that in bracket

hi! welcome to mylot. :) it tells the number of posts you have made. this includes the number of discussions you started which has responses, as well as the number of responses and comments you made on others' discussions. it indicates how active your participation here in mylot. the more active you are the higher the number of your posts. when you reached 100 posts, you will have a star appearing beside it too. it will show your mylot reputation and star rating. the rating will indicate how others rate the quality of your posts. it could be from 0-10, with 10 being the highest. so goodluck and keep doing quality posts. :)

if you are refering to the bracket next to your name, it indicated the number of posts you have

It indicates how many posts you have made. You can tell from the number how new or experienced someone is here. Once you reach 100 you get a star. 10 being that your fantastic myLotter. Once you reach 500 you have the ability to add images to responses and to copy and paste. Welcome to myLot and have fun. Make sure you have a good read of the guidlines (top right tab labelled myLot) Rate peoples responses, report spammers and abuse, chhose best response and always be curteous.