I've got to admit, I thought you were exagerrating Wiki's Russophobia
I would NOT throw a fit and claim I never ever exagerrate (I don't think anyone can reasonably claim that), but sad truth of the matter is that it is not necessary to exaggerate when you're talking about depth of Russophobic bias Baltic and Polish WP editors are possessed with. As you've seen, there's just no boundaries to absurd claims they would make. So exagerration just isn't necessary.
While I know next to nothing on partisan activities in Belarus, in Finland Soviet partisans did exactly that, attacking small and helpless civilian targets and rarely, if ever, military units. They performed raids into Finnish territory in Lapland, behind the lines, and brutally attacked unevacuated villages. This is well documented, too. It can be called Russophobic if one claims that the partisans were just murderers of civilians, but there truly was that side to Soviet partisan activities.
DrakonFin, there are several aspects to that:
1) I'm not sure it is OK to single out Red Army (those groops you're talking about were not "partisans" i.e. local paramilitaries springing up as result of the hostile occupation, they were raiding Red Army units) for this type of behaviour (attacks on majority civilian targets disguised as "military necessity"). Just spell "Dresden" and "Hamburg".
2) Often difference between "civilian" and "combatant" is pretty tough to assess. Were members of "self-defence units" (most of modern Baltic prosecution of Soviet vets related to raids on villages documentally identified as hotbeds of "self-defence") civvies?
3) Yes, war is bitch. I guess no one in Finland tried to compare number of Soviet civvies perished in Finnish camps with number of Finnish civvies killed by Red raiders.
What filters through the Finnish media on the historical view of Baltic nationalists and Russians, respectively, is mindboggling. There just seems to be no common ground. Both sides have their fixed views on WWI, WWII, Facism, Stalinism, etc. and I guess civilized discussion on history between the groups is very rare, at least on a popular level.
1) You aren't forgetting about (quite natural) pro-Baltic bias of Finnish media, are you? Not that there's something wrong with that, but you can be sure that you hear softened versions of Baltic claims and very exaggerated version of Russian ones.
2) Baltic countries are actively discouraging any discussion of official version of history they promote. Regime similar to what (according to very opinionated Western claims) Russain "anti-falsification comission" is aiming at (official pressure on researchers those findings are not in line with official version) in some uncertain and very totalitarian future is the reality of Estonia and Latvia since at least 2000. I mean, how often you see about people being deported for intention to participate in scientific conference, or State Security apparatus branidng all minority groups as "agents of hostile influence"?
3) Balts didn't go through "de-totalitarisation of thinking" Germans and (to a lesser extent) Japanese went through in 1945-1965 and Russians are going through since 1985. Unlike latter, who were forced to re-assess their history and actions, Balts went through sequence of ethnic romanticism of 1930s (remember that all three were dictatorships for the most part of their pre-war existence), Soviet totalitarism (which they saw as something externally imposed, although it grew deep roots in local societies too) of 1945-1985 back to ethnic totalitarism since 1985. In plainspeak, psychologically unreformed Soviet propagandists (with notion of "difference of opions is natural" being deeply foreign to them) just dropped red banner of internationalism and picked up multi-colored banner of nation-state.
Irregular warfare is always brutal, certainly, and there were, I imagine, plenty of bandits who called themselves partisans, and plenty of atrocities against supposed collaborators and so on, but by "partisan" I don't mean Soviet irregular combat units deployed in Belarus, but rather the Belarussian homegrown movement.
Belarus had all kinds of regular, irregular, semi-regular and just criminal groups operating in forests and often entering an alliance of convenience with one another. Parachuted NKVD commando groups, remnants of Red Army caultrons of 1941, local anti-Nazi groups of different hue (AK, Red partisans, some Lithuanian and Belarussian nationalists), armed deserters, hiding armed and unarmed Jews, criminal gangs operating outside of formal allegiance but sometimes assuming identity of one of main forces, German-organized local self-defence units quietly working with underground, underground posing as pro-German self-defence... Nightmare, sheer nightmare. And none of them were saints...