What is the ruling on keeping messages and gifts (collecting memories)?

There is no harm in collecting messages and gifts as long as their content is not forbidden, or they do not infringe upon a right, or distract from an obligation. However, a Muslim should preserve their time and utilize it for what benefits them in this world and the Hereafter, because the Prophet, peace and blessings be upon him, said: "Two blessings in which many people are at a loss: health and free time." And a Muslim will be questioned on the Day of Judgment about their life, their wealth, and their knowledge. Spending time collecting messages and gifts is a matter of curiosity that has no benefit.