Mods seem to be handing out arbitrary ban lengths. Therefore it is necessary to establish consistent and fixed ones. Here is my proposal:

*Posting ponies outside /mlp/ and /b/ - 10 days
*Posting CP - One year (permaban if large-scale posting)
*Ban evasion - 5 days
*Posting porn on SFW boards - 7 days
*Spamming - same as CP
*Posting /pol/ shit outside /pol/ - 6 days
*Posting /r9k/ shit outside /r9k/ - 2 days
*Posting college threads on /sp/ - 9 days