I kinda feel threatened when i came home to find a sign that read "dig your grave" not sure if thats a threat or if its just a joke but id like someone to look at it. i took the sign down btw.
You can report the incident here. It may be harder to follow up now you have removed the sign, unless you remember the exact location of the sign. If it happens again you should take a screenshot, leave the sign and post report so a Moderator could follow up on the issue. The person who put the sign there probably isn't making a serious threat but of course things lose their context online and in games. So it's still worth telling a Moderator in the future, if it happens again.
As myminecrafter pointed out you can post a complaint here, remember to include the exact coords of the sign.
You should never take down evidence. So you have proof of it happening. Also always take pictures of it.
