I guess signs appeal to humans because they speak to our senses as well as to our intellects. In general, signs do not have meanings per se. It's people that have meanings for signs. Thus signs are differently perceived by different people. This filigree café logo, however, had a distinct meaning and appealed to me in several ways. One very simple reason was my desire for coffee that was about to be satisfied. Coffee was within reach!
Another reason was the logo was so helplessly squeezed between these two monstrous air conditioners, so I had to photograph it. Not to worry poor little sign, I recognized you. (;