There is a difference between straighforwardness and rudeness, please do not assume any 'tone' that you cannot see or hear it is not there. It would be much nicer if you were to assume straightforwardness not rudeness. Please remember we are not all from the same background or even country here, despite (mostly) speaking the same language.
Agree with you wholeheartedly the laughing was completely inappropriate, nobody has said or intimated that is was anything else. I also agree with you it was passive-aggressive to address the issue in a group setting. You said you could not believe people thought it was ok to say, my posts were the closest to that. If you did not mean me I also apologise but frankly I cannot see who else you were referring to.
2a-2c, medium texture, porous/ colour treated. Three years CG, growing out mechanical and chemical damage = breakage and very high porosity. Past armpit length heading for waist.
Treatments: Komaza protein, Komaza Matani, coconut oil with sugar syrup. Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss ultimate volume
Styler: Umberto Giannini jelly, Boots curl creme, Rockin RInglets
Experimenting with: Mega-Tek, Curl Harmony reviver, Elvive Full Restore 5.