In the machine's depths, I collect threads from your daily life. If I'm not cleaned, I can become dangerous. What am I?

Many look for me in new situations. I am rather unimportant and quickly disappear when the real conversation begins. Solve the riddle → What is a standing box that gladly swallows plastic and spits out paper, but never remembers your face? Solve the riddle → It brings you closer, yet often keeps you apart. What is it? Solve the riddle → What is it that, when full, reveals your consumption habits and requires a trip? Solve the riddle → In an endless circle, it presents unknown twins, while you, with eager eyes, search for your own reflection. Solve the riddle →