"Modders":
__calcium
Games Repainted
kawaiikaorichan
Lady Lunanova
MainMemory

Twitter sucks because of:
Bobposting
Clara Sorrenti/Keffals
DAclassicgamer/DAepikartman
Erin Reed
Gamechamp3000 (more like Game Chimp lol)
KairiHawk
Katherine Gibes/TransSalamander
Lady Lunanova
Liz Fong-Jones
PearlTrans
RosieRoberta
Saberspark
ThatOneCalledRPG
UltimateDSEris
(Creeps, creeps everywhere)

YouTube (more like ThemTube at this point):
The Act Man
Alpharad
Awesomemay (more like awfulmay, am I right?)
BaptismOnFire
beat fox15
boogie2988
Bringle
CandyEvie/Luvie
CaptainKidd
Castoon
CDawgVA
chaomix
cjya+cjya VODS
The Completionist(ic Thief lol)
ContraPoints
Cybershell+Cybershell & Knuckles
dabhdude
Dovendraw/Extra Daft
Doobus Goobus
DramaAlert
Dumbsville
EazySpeezy+EasiestSpeezy
Eddy Burback (more like Eddy Burntback lol)
Exploshi
Filter
Fir
Gamechamp3000 (just watch Game Center CX instead)
GiIvaSunner/SiIvaGunner
h3h3 Productions
iiluminaughtii
Johnny 2 Cellos
Jrose11
Just Stop/Just Go
Kappy
Lady "I don't have that money" Decade
Lily & Mikaila [Orchard]
Linkus7
Linus Tech Tips/Techquickie/ShortCircuit/TechLinked (How many channels do these numbskulls need?!)
LioConvoy
Ludwig
LS Mark/Midnight Mark/Splash Dash/Meeting Halfway (Gen Z's Lily Orchard)
Magic The Noah
Memeulous
Misty Chronexia
Nux Taku
O3
OneyPlays(WithMyEyes)/OneySays
pChal
penguinz0/HugeCharles (A Dose of Buckley is, has been, and will always be better)
Plainrock124
PointCrow+PointCrow VODs
QuantumTV
Quinton Reviews
Ray Rants
RebelTaxi
RTGame
Shyguymask
SmallAnt+SmallAnt VODs
SomeOrdinaryGamers/SomeOrdinaryPodcast (shows how much of a hypocrite Mutahar is)
SonnyTM
Sr Pelo+Pelo Streams
SSniperWolf
Stryder7x
Super Bunnyhop
TerminalMontage
Top Hat Gaming Man (more like Top Hat Begging Man, according to retrowatcher)
Trash Taste (The Anime Man[child] is a creep, apparently)
UltimateDSfan/UltimateHellscape/8BitComms
Vaush
Veridis Joe
Vinesauce and its subchannels
YMS/AnUnkindness/Sardonicast
a few others I'm sure I've missed

Misc:
CWC
Encyclopedia Dramatica
Froge
lolcow.farm
Luke Smith
NedWolfkin
Nicholas Perry/Niko[cunt]o Avocado[pe]
Rebeccah Kruleski/Rebeccah Starlight/StarGiantess/StarGiantPro/Star Giant Productions
Sophie Labelle
Vinson Ngo/Bleedman
Zone Archive/Zone Toons

In conclusion: nearly everyone is terrible!