B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
56%
56% -- customer dissatisfaction likelihood increase for customer service messages (2025)
A set of keywords (including 'apologize', 'sorry', 'delay', and 'inconvenience') was associated with a 56% higher likelihood of customer dissatisfaction in customer service messages.
- Association/correlation rather than direct causation (apologies signal an existing issue)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
56%
Unit
Percentage
Data Vintage
2025
Entity
Sample Size
2,800,000
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
RapportBoost.AI
Primary
Tier B
https://michaelhousman.com/posts/machine-learning-deep-learning-what-happened-to-human-learning.html ↗
Source Article
Michael Housman | Machine Learning? Deep Learning? What Happened to Human Learning?
Machine Learning? Deep Learning? What Happened to Human Learning?
Recent advances in data science have been driven by the rapid rise of deep learning algorithms and the availability of inexpensive, high-powered GPUs to support them. These models excel at prediction and require little feature enginee…
Original Research
RapportBoost.AI
· Original study ↗
Methodology
Analysis of more than 2.8 million customer service messages using machine learning combined with econometric analysis
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
customer service messages: 56% customer dissatisfaction likelihood increase. Source: RapportBoost.AI (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/apology-keywords-customer-dissatisfaction
HTML Embed
<blockquote cite="https://lighthousedata.io/data/apology-keywords-customer-dissatisfaction" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>56%</strong> -- customer dissatisfaction likelihood increase for customer service messages<br><small>Source: RapportBoost.AI (2025) · <a href="https://lighthousedata.io/data/apology-keywords-customer-dissatisfaction" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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