If you propose to block a significant range , or for a significant time , consider asking a user with checkuser access to check for collateral blocks - that is , for the presence of other users who may be unintentionally affected by the range block . If you propose to block a significant range , or for a significant time , consider asking a user with checkuser access to check for collateral damage - that is , for the presence of other users who may be unintentionally affected by the range block .