"The notice board was riddled with negative comments from everyone"
"The notice board was riddled with negative comments from everyone"
"this notice board" 「この掲示板は」
"was riddled with ~" 「〜で満ちている」"was covered in ~" や "was filled with ~" も言えま。
"negative comments" 「負の感情」
"from everyone" 「人びとの」
[負の感情](https://eikaiwa.dmm.com/uknow/questions/15060/)についてもっと詳しく知りたい方はクリックしてください。