Data Analysis: The Most Foul-mouthed & Negative NFL Fandoms

VegasInsider Staff Sports Betting Expert

3 minute read

With the 2025 NFL season in full swing, VegasInsider has analyzed the subreddits of all 32 NFL fandoms to find out which fans are the most polite and on the contrary, which fandoms are the most foul-mouthed. Secondly, the sentiment of the comments was analyzed to reveal which fandoms are the most negative and which ones are the most positive.

THE MOST FOUL-MOUTHED NFL FANDOMS

At first, a sample of comments from the subreddits of the NFL fandoms was collected (with a minimum of 15,000 comments per fandom) and subsequently it was analyzed how much % of their comments included swear words.

According to an analysis of 1.2 million comments of all the NFL fandoms, Indianapolis Colts were found to be the most foul-mouthed fandom since 16.4% of the comments on their subreddit included swear words. Cincinnati Bengals turned out to be the second most foul-mouthed NFL fandom (15.9% of their comments included swear words) followed by Dallas Cowboys in third place with 15.3% of their comments including swear words. 

On the other hand, Los Angeles Chargers were found to be the most polite NFL fandom since only 10.9% of their comments included swear words. The second and third most polite fandoms turned out to be Buffalo Bills and Houston Texans, respectively - 11% of the comments of Buffalo Bills included swear words while only 11.1% of the comments of Houston Texans included swear words. 

You can see the results for all the NFL fandoms in the table below.

The most “popular” swear words per fandom can be found below. 

THE MOST NEGATIVE NFL FANDOMS

Additionally, the emotional tone of each comment was assessed and categorized as either negative, positive or neutral. According to the results of the analysis of 1.2 million comments, Cincinnati Bengals turned out to be the most “negative” fandom, since 28.48% of their comments had a negative sentiment.

In second and third place as the most negative are Dallas Cowboys and Indianapolis Colts, respectively. 28.27% of Dallas Cowboys’ comments were categorized as negative while Indianapolis Colts had 27.74% of negative comments.

On the other hand, the top 3 most positive NFL fandoms turned out to be: Tampa Bay Buccaneers (52.44% of positive comments), Arizona Cardinals (52.33% of positive comments), Denver Broncos (51.57% of positive comments). 

You can see the results for all the NFL fandoms in the table below.

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METHODOLOGY

• In total,1,232,520 comments from 32 subreddits of the 2025 NFL fandoms were analyzed, looking for comments that contained swear words 
• In total, 158,534 swear words were found
• Each fandom was assigned a percentage value based on the % of the comments on their subreddit that contained swear words 
• Additionally, the emotional tone of each comment was assessed and categorized as either negative, positive or neutral — comments with a compound score below -0.05 were categorized as negative
• Minimum number of comments collected per fandom: 15,000
• The final analysis was carried out in September 2025

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