Particular AdBlock Plus

I just switched to Dissenter/Brave from SeaMonkey, and can’t seem to get rid of an annoying Slashdot ad. If I block slashdot.org script, I can’t moderate, and then the ad shows.
Did the issue present with default Shields settings? (yes/no)
Yes
Default states are:
Block: Ads/Trackers, 3rd Party Cookies, 3rd Party Fingerprinting Allow: Encrypt Connections (HTTPS), Scripts

Where and how do the ads appear? (fill out below)
On slashdot.org full topics
URL where ad was displayed:
https://politics.slashdot.org/story/19/07/09/1722233/trump-cant-block-critics-from-his-twitter-account-appeals-court-rules
Screenshot of ad as it appears on the webpage:
slashdot-ad
Console Output (optional):

What Brave version/Build are you using? (See the About Brave page in the main menu)
Version 0.65.121 Chromium: 75.0.3770.100 (Official Build) (64-bit)

@Klulhlu you may want to reach out to Dissenter support team. This is support forum for Brave Browser.

Thanks.