Hi, I'm so sorry to be a bother, but on one of the blogs I run I had someone ask be how to blacklist a tag and I can't find any resources on how to do this. Would you be able to help me out?
Yes, of course! This link should help, specifically numbers two and three of these options: http://www.wikihow.com/Blacklist-on-Tumblr (These are for desktop, I will get to mobile later.)
Number two talks about how you can download Tumblr Savior as an extension and type the tags in the boxes provided (instructions are provided in the link). Also, it is available for the major web browsers, which are Firefox, Google, Opera, and Safari, so anybody who uses this extension should be covered.
Number three entails using the XKit extension. This is more popular than Tumblr Savior from observing interests in extensions for Tumblr. (This too has the instructions in the link I provided above, at the very top of this.)