User:Y/Might be important to protect these

Vandalism of these things would be not good (pages with strikethrough have since been protected by admins, thanks to those admins)

See also the converse page

• Template:About (100+ transclusions)
• Template:Big (500+ transclusions)
• Template:Br separated entries (100+) Thanks PF!
• Template:Click (200+)
• Template:Start box and Template:End box (Semiprotected but important, 250+)
• Template:Font (1000+!)
• Template:Lowercase title (500+)
• Template:Link (500+)
• Template:Main other (100+)
• Template:Menu-begin, Template:Menu-btn, and Template:Menu-end (200+)
• Template:Navbar (Semiprotected but extremely important, 4500+ transclusions) (protected by EMC, thanks dawg)
• Template:Navbox (250+)
• Template:Nologo (250+)
• Template:Popout (250+)
• Template:S (750+)
• Template:Small (Semiprotected, 4000+ transclusions)
• Template:Str left (100+)
• Template:TOCleft (100+)
• Template:Today (important)

Update: Thanks EMC for protecting these

• Template:User not here (33 important transclusions)
• Template:Didyoumean
• Template:Ref (AC protected but it has 300+ transclusions)
• Template:Seealso (not autoconfirmed protected) (50+ transclusions)
• Template:Whoops (Autoconfirmed protected but it has 1000+ transclusions)
• Template:progressbar (VFH)