In this era, do handwritten letters or poems make people feel like clowns and hypocritical?

No, on the contrary, handwritten letters will make people feel your seriousness and sincerity, which is precious in today's era of electronic information flooding.

You may not be very accomplished in calligraphy, but as long as your handwriting is neat and your paper is neat, you can still leave a good impression. Poems written with pen and paper often have their own aura, and people who like to write and read poems are never out of date.