ಠ is a letter, not a drawing
The eyes of ಠ_ಠ are U+0CA0 KANNADA LETTER TTHA, borrowed from the script used to write Kannada in southern India. Its rounded body with a dot inside happens to look like a glaring eye, and the face spread on English-language message boards in the late 2000s as the look of disapproval. ಠ_ರೃ swaps one eye for ರ (U+0CB0, RA) plus the vowel sign ೃ (U+0CC3), which a Kannada font tucks underneath like a monocle chain. Because the face depends on real script shaping, it can look slightly different from one font to the next.
The borrowed scripts behind dongers and orz
ヽ༼ຈل͜ຈ༽ノ is a tour of several writing systems. The ༼ ༽ brackets are Tibetan marks (U+0F3C and U+0F3D), the eyes are the Lao letter ຈ, and the mouth is the Arabic letter ل with a combining double breve, U+035C, beneath it. It became a Twitch and Reddit chant around 2014, usually paired with "raise your dongers". orz is older and simpler: three Latin letters that, read left to right, show the head, the arms on the floor and the folded legs of someone kneeling in defeat. It came out of Japanese boards in the early 2000s, where _| ̄|○ was the more literal version.
Why trollface and rage faces are missing
Plenty of meme formats are text from the start, and those are what this set reproduces. Trollface is different: it is one specific drawing, its artist reportedly registered a copyright on it, and licensing claims have followed its use since. Many rage-comic faces have similarly murky ownership, so this page keeps their captions, such as FFFFUUUU and the faux-French "le me" framing, and drops the faces. The same thinking applies to "this is fine", which comes from a 2013 web comic by KC Green: the piece here quotes the line over ASCII flames and does not redraw the comic's dog.
