PunBB compared to other discussion boards

Software	Flat	Threaded	User-selectable themes	Calendar	Image attachment	Unread message tracking	WYSIWYG Editor
AEF	Yes	Yes	Yes	Yes	Yes	Full	Yes
Beehive Forum	Yes	Yes	Yes	Yes	Yes	Full	Yes
FluxBB	Yes	No	Yes	No	No	Session	No
FUDforum	Yes	Yes	Yes	No	Yes	Full	Yes
FusionBB	Yes	Yes	Yes	Yes	Yes	Full	No
IceBB	Yes	No	Yes	No	Yes	Full	No
Invision Power Board	Yes	Yes	Yes	Yes	Yes	Full	Yes
MercuryBoard	Yes	No	Yes	No	Yes	Session	No
MiniBB	Yes	No	Yes	Yes	Yes	Full	No
MyBB	Yes	Yes	Yes	Yes	Yes	Full	Yes
NextBBS	Yes	Yes	Yes	Yes	Yes	Full	Yes
Phorum	Yes	Yes	Yes	No	Yes	Full	Yes
phpBB3	Yes	No	Yes	With MOD	Yes	Full	Yes
PunBB	Yes	No	Yes	No	No	Session	No
Quicksilver Forums	Yes	No	Yes	No	Yes	Full	No
SMF 1	Yes	No	Yes	Yes	Yes	Full	Yes
Think Tank Forums	Yes	No	No	No	No	Full	No
UBB.threads	Yes	Yes	Yes	Yes	Yes	Full	Planned
UseBB	Yes	No	Yes	No	No	Session	No
Vanilla	Yes	No	Yes	No	No	Full	No
vBulletin	Yes	Yes	Yes	Yes	Yes	Full	Yes
Vikingboard	Yes	No	Yes	No	No	Full	No
XMB	Yes	Yes	Yes	No	Yes	?	No
Software	Flat	Threaded	User-selectable themes	Calendar	Image attachment	Unread message tracking	WYSIWYG Editor

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