JimFMB, one of the greetings I've tried out is to offer up "Yeah, I know, I'm cheating." as I go past riders without epower on the roads. Usually gets a smile, especially if I just ease past them and don't just blow their doors off. Thankfully, most of my riding on my ebike by time and location does not have me dealing with packs of riders in full regalia. It's easier to address 1 or 2 than a group of 20.
I had my first encounter with such a group -- but no conversation was had, so not a snark exchange! But that could've been because of my own choices/actions...
It was a big group on perhaps a training ride, or at least a (serious-focus) social ride... easily 2 dozen, all men. They were riding a very popular 3-mile one-way street that is almost always quiet and largely flat, which I often include in my routes. It was an amazingly blustery day, for which I'm always glad to have higher levels of Assist waiting in the wings... And for the section biking into the wind, they were moving slower than I'd normally see a group like that -- usually groups like this are clipping along a solid 20+mph pace.
They were biking 4 abreast in the right lane, even spilling into the left lane quite a bit (this is a 2-lane, one-way street) and all of them constantly talking, gesticulating, etc. It irks me when cyclists (and especially in large groups) don't follow the traffic rules of the road, but I kept utterly quiet about that here... I came up behind them and figured I shouldn't attempt passing since it would put me in what was, ostensibly, the lane we're all sort of meant to leave free for cars to pass us. And I figured I might get some snark passing 2 dozen kitted-out racers; I was in no rush (a weekend ride) so I just tailed them the whole way.
As we rounded the bend, the wind now at our backs, they stepped up to about 19-21mph in the same sprawling group format. I kept up and even at one point ended up more or less on parallel with the rearmost riders, although they were so deep in their conversations I have no idea if they even noticed me. (If they did -- kudos for no snark! I'll take being socially ignored as an ebiker by them, vs insults, any day!) We approached the all-way Stop intersection, which (cough-cough, ahem, naturally!) none of them slowed down for as they flew through a right-turn en-masse. At that point I peeled off and took the other direction, solo.
I've wondered what
might have happened, had I chosen to pass all those serious men with ease -- My Level 5 on a flat -- watch out!! It makes me utterly nervous to go that fast, myself! But my experience is, generally, male riders have the more fragile egos when it comes to taking instant offense at say, something as
logically inoffensive as being passed. (But, we see it in car drivers too, every day... a weird, 'always-me-first' kind of tick in the human psyche...?) I stayed in Assist Level 1 probably 85% of the 3 miles, with a few dips into Level 2 when the slight grades at the middle were taking their toll on me -- I enjoyed having to put in a bit more pedal effort to keep pace with them (I have no throttle, so I always have pedaling going on) than I would have ordinarily if I were riding the 3 miles at my usual ~15mph clip.
As a general rule, anyone I pass on trails (mostly analog bikers) I try to remember to offer a cheery "good morning" style greeting. I give a smile and quick head-nod to oncoming cyclists as well, when the trails aren't terribly crowded, at least. Alas, in the majority of cases none of these simple civilities get returned (though it is hard to tell how much headphones could be at play here, blocking out my verbal greetings.) I also tend to think that an oncoming lycra-clad roadie, seeing me approach in a legit Gore jacket but wearing flapping khaki pants, likely dismisses me outright...
Still, on the flip side of this kind of not-insulting, but also not-approachable behavior, when I'm stopped trail-side to pick up litter (something I've taken to doing this month on all my dry commutes home) -- some cyclists (again mostly analog since there are so many more of those bikes) do slow down and ask "everything ok?" not realizing I'm just picking up trash. So -- as with all folks, very hard to lump all riders into a single bucket of behavior. And because of that, you can't reliably err on the side of "all cyclists are friendly and civil all the time" ... So I can't assume my "good morning!" greeting, sincerely offered, if passing a sensitive rider who resents ebikes, wouldn't be construed as some kind of mocking / belittling form of snarky-ness from me, provoking a response...!