There's a rumor that NASWA already have the judgement
https://www.the-star.co.ke/news/2017/09/06/nasa-is-privy-to-the-full-supreme-court-ruling-jubilee-says_c1630142

This is so obviously not a 'rumour' but transparent Jubilee propaganda after the Nation (and the Judges who spoke to their investigative journalists) exposed Jubilee shenanigans last week. The embarrassment must really sting.
As if those judges would risk this with the drunken sore loser president ranting at them all weekend long and past. But it's a nice try on their part.
At worst, they are attempting to tell the court what to say in the judgment. The nerve. Its actually much more likely that THEY know whats in it or are anticipating it in order to pre-empt its impact.
Rumors and propaganda are not mutually exclusive. I just can't see any value this adds to Jubilee. If the idea is to portray NASWA as having SCOK moles, it's a tad stupid
The loss was humiliating. No prizes for guessing so
'Rumours' implies its not obviously a made up story like this one
The loss wasn't humiliating so much as it was painful, which is pretty normal and understandable. What was humiliating or at least highly embarrassing was exposure of their attempts to manipulate the judgment. This is what they are countering here with another predictable "They are dirty too, just like us!" It serves the ongoing agenda of discrediting the court and judgment, threatening the judges, and smearing their political opponents all at once.
Possible. But attempts smear Judiciary and especially SCOK by linking them to NASWA predate this petition and in fact the 'exposure'.
Rumors are just unverified accounts. They are 'made up' if there's positive evidence somebody intentionally lied or they turn out false.
I can't read anymore into this other than one of Jubilee's systematic attacks on Judiciary. As for motives, your guess is as bad as mine
I don't really see that we are saying anything substantially different. It seems you may have taken offense at my objection to using the word 'rumour'. It wasn't personal. When I hear 'rumours' I generally think of things which are equally likely to be true or false. For example, Obama's teenaged daughters being paged while at the White House (something once spread on the internet) was far less rumourish than tabloidish to me. That was m meaning. It doesn't matter though. I just thought propaganda was a more suitable term for the content of that report which is far more likely to be deliberate Jubilee lies with the exposed Murkomen up front than it is to be truth-telling, all things considered.
Sure, rumors,propaganda are all unsubstantiated stuff. Propaganda sounds more organized and goal oriented while rumors could be anything from honest disinformation to silly prank.
Difference is your perceived motive.
To you, Jubilee is after moral equivalence while I think the target is actually SCOK. That's why I said your guess is as bad as mine.
The influence peddling story is days old and Jubilee did absolutely nothing about it in the following days. The story is not gaining currency so I don't see anything that would prompt them to out of blues get on defense. NASWA funnily is not exploiting it at least not yet.
PS
There's is nothing offensive or offense-worthy in either term, just not convinced you should depart from one for the other