If their is ever a user that picks on you or a newcomer these are the things you should do.
Mods
The mods will most likely bann or deal with the user if you tell them
First you should either go to a mods profiel, give them the name or the link to the users profile. This will make it faster for them to find the user.
Freinds
If you have a good freind that will stick up for you or tell a mod you can do that just tell a freind who or what they are doing. This will help if you are nervous of telling.
Flagging
If they hapen to make a rude or vulga comment you can always flag it. The flagging button is right next to a comment.But the issue will likely be dealt with faster if you tell someone.
Takeing Matters into your own hands
If you feel that you can fend of the user from picknig on you , you can. But if you swear too, you can get in trouble too. At most you should say one sentence thats short and sweet like 'leave me alone or I will tell a mod' Or this is your warning' something like that. You always want to atay calm and nice to him no matter what he says.
Well that was my first guide so i hope its good.