Most of the time floaters are harmless. However, they can be a symptom of a tear in the retina. (The retina is the clear tissue at the back of your eye.) If you notice a sudden increase in floaters or if you see floaters along with flashes of light, this may be a symptom of a retinal tear or detachment.
Roblox is free to play, but to get Builders Club which gives you more features and perks as well as additional Robux you need to use real money to get them.
ROBLOX allows users to create ads to advertise their places, clothing, models, decals, etc. Ads are images that users upload. When the image is clicked, it goes to the thing that you are advertising. Advertising is a good way to bring attention to the awesome thing you have just built.