The reason is, while preparing a blog article, our volunteer asked an AI to handle the routine task of marking and tagging. As a result, the AI inserted a small piece of text, even though we didn't ask it to and hadn't given it permission!
AI might sometimes do something like that, even when not specifically asked:
Model "Creativity": Some AI models are tuned to generate more "creative" or diverse responses. This can sometimes lead to unexpected additions if its "creativity" isn't constrained by clear parameters.
Error or Side Effect: It could also simply be an unforeseen side effect of the algorithm or even an error in its processing for that specific situation.