every marijuana coin is a pump and dump, and it should be obvious. Anyone with a brain will not touch these coins with a 40-foot pole
I observed so. But I like the HMP coin. Something like it has a rhythm on exchanges. Its a pump and dump case also but its fun to trade with.I do not have experience trading with other Marijuana coin aside from HMP.

'pump and dump'?
POT ->
https://bitcointalk.org/index.php?topic=426324.0 'PotCoin' January 21, 2014
DOPE ->
https://bitcointalk.org/index.php?topic=467641.0 'Dopey' February 15, 2014
THC ->
https://bitcointalk.org/index.php?topic=506320.0 'HempCoin' March 08, 2014
BLZ ->
https://bitcointalk.org/index.php?topic=624778 'wpstudio' May 25, 2014
BGR ->
https://bitcointalk.org/index.php?topic=634701.0 'Bongger' June 01, 2014
CCN / ->
https://bitcointalk.org/index.php?topic=740903.0 'CannaCoin LLC' August 15, 2014
CANN ->
https://bitcointalk.org/index.php?topic=827998.0 'YESWECANN' October 19, 2014
STV ->
https://bitcointalk.org/index.php?topic=874071.0 'altcoin.center' November 26, 2014
or functional blockchains still up and running for 2 YEARS!
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HMP is a little too premine-y and ICO like, no endorsement
