Per Transifex and @simon, here’s a summary of everyone that contributed to translating Discourse in 2018. Thank you for your help in bringing the 100% free, open source experience of Discourse to so many people in the world! 
Discourse 2.0 translators
Albanian
Kreshnik
Arabic
husseinhilmi, Islam_Ali, ahmadnourallah, ahadel, Naila123
Bengali
Ahmednazir, safwanrahman, Swarnava
Bosnian
ivke, metakermit,
arnelh
Bulgarian
orlink, aasenov89
Catalan
itorres, quimgil
Chinese (China)
ChengZheng1c7, terryxsq, cxlwill, boltomli, keyboardstaff, zhengyuan1229
Chinese (Taiwan)
bentsai, cges30901, disam8853, s8321414, zerng07
Croatian
inqui
Czech
hason, vitek_nespor,
danielhollas, netcarlos, Darnon, martin.bohac
Danish
frold, joerichsen
Dutch
rmens, pikapower
English
Menestrels
Estonian
Eraser
Farsi
hnaseri, behraaang, hmalekny, Goudarz, atlasodoo, MehdiAmani, tabasi
Finnish
rizka, rantalanmatias
French
Benjol, dorianmarie,
kleiny
Galician
Cachaldora
Georgian
Ronteras
German
gschlager, claasaug, rizka, Stranikevg, frictionel, kaefert, Atalanttore, caffeine
Greek
skarmoutsosv, karasardelis
Hebrew
Yaron
Hindi
itsbhanusharma, vullankib
Hungarian
DerKoszt, pushrbx, ragyaknorbert, ThorY, elekdavid, daniel.kovacs, janos.zab
Icelandic
MyraMidnight
Indonesian
Marsanto, mawarduri, tngksygjhn
Italian
Trash74, vulkanino
Japanese
rrrobo, tekawa,
indiv, zhengyuan1229, xmeta, cybersenshi
Korean
unclemiru
Korean (Korea)
unclemiru
Latvian
Kadiljaks, Menestrels
Lithuanian
savaskampas, Paulens
Macedonian
Mihajlovski
Norwegian (Bokmål)
ssvenn, kingu,
tep0sen, njamdal, aleskr
Persian
tabasi
Polish
Jqmey, Bricks,
krystian3w, MakaryGo
Portuguese (Brazil)
chicojr, vwss1984
Portuguese (Portugal)
manuelarodsilva, j_assuncao, TDF2001
Romanian
vladilie, shnako, iamntz, rbadea, viaplaying, adrian.silimon
Russian
Stranikevg, rapekas, PREJunior, Uncle_Alex, ra4evah, tikolakin
Serbian
ivke, dbm
Serbian (Latin)
ivke
Slovak (Slovakia)
hason, skdd,
janci, s4muel, gabokapu, ernestwalzel_gtc_MTdjZW, asalko, michalstanko, milandarjanin
Slovenian
alfabetagama, majakom, amnesia
Spanish
SidV, Apecengo
Spanish (Argentina)
SidV
Spanish (Castilian)
SidV, Apecengo
Spanish (Ecuador)
SidV
Spanish (Latin America)
SidV, zaskiaruizrodri_gtc_YWM5NG
Spanish (Mexico)
SidV
Swahili
irwin.binamungu, irwinbinamungu, fpglyimo
Swedish
LuciaMati, erikxxon, piksel, D.H., hannawekell
Tamil
TAMILAN
Telugu
vullankib, satish49
Thai
thisisapen
Turkish
MuhYal, ggurbet,
ru1ns, kabadayi28, Rootzilla, buracat, muratbiskin
Ukrainian
tikolakin, meglio
Urdu
AhmadF.Cheema, naveedahmad
Vietnamese
dangtrungluong, tongdaitructuyen, quocbao747