If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one.
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
Additional context:
https://en.wikipedia.org/wiki/Approximant_consonant
https://en.wikipedia.org/wiki/Semivowel
https://en.wikipedia.org/wiki/R-colored_vowel
https://en.wikipedia.org/wiki/L-vocalization
https://en.wikipedia.org/wiki/Syllabic_consonant