If you have ever published anything anywhere then you are a journalist

[Agnosticsherbet]

11. You want definitions?

jour·nal
ˈjərnl/
noun
1.
a newspaper or magazine that deals with a particular subject or professional activity.
"medical journals"
synonyms: periodical, magazine, gazette, digest, review, newsletter, bulletin; More
2.
a daily record of news and events of a personal nature; a diary.
synonyms: diary, daily record, daybook, log, logbook, chronicle; More
NAUTICAL
a logbook.
a record of the daily proceedings in the British Houses of Parliament.
plural noun: Journals; plural noun: the Journals
(in bookkeeping) a daily record of business transactions with a statement of the accounts to which each is to be debited and credited.
3.
MECHANICS
the part of a shaft or axle that rests on bearings.
Origin

More
late Middle English (originally denoting a book containing the appointed times of daily prayers): from Old French jurnal , from late Latin diurnalis (see diurnal).

The journals here are not "a newspaper or magazine that deals with a particular subject or professional activity.medical journals" synonyms: periodical, magazine, gazette, digest, review, newsletter, bulletin;"

They are "2. a daily record of news and events of a personal nature; a diary. synonyms: diary, daily record, daybook, log, logbook, chronicle; More"

So they are not Journalism.

They are opinion, not journalism.

Alternet is a lot closer to journalism, not professional in many cases, but would fall under journalism.

What we do here is discuss issues of the day. That does not rise to the level of Journalism.