Just taking a poll of how many teams have working climbers that will be ready by the first competition week. Inspired by the “what will win weeks 1/2” thread. Here is the link so you can check it out yourself! https://www.chiefdelphi.com/forums/showthread.php?threadid=155154
We are not doing a week 1/2 event but had our climber going at the end of build week 5. It hauled the robot up in six seconds. And none of that wimpy velcro either, we climb 'em honestly.
T. Wolter
How will everyone we climbing? What methods? How fast do you need to be to be competitive?
We are in a week 1 event for the PCH district. We will be climbing, tested out our winch system last night and we climbed up in about 5-7 seconds. With another 5-10 seconds of lining up.
There are various methods of climbing. Just using the search function on C/D yields a bunch of results and typing in “frc 2017 robots” yields some ideas for what teams will be doing in general. There is no one right or wrong way of climbing. My team will be climbing and we are using one bag motor in a 100:1 gearbox to a 16:64 gear ratio to a 15:22 chain run to the output.
“How Fast” depends on each individual event. If defense isn’t a big deal, then taking 15 seconds to climb is probably fine. If you’re defending at the pinch point, your alliance needs the 50 points, yet you’re preventing a final gear - you’ll probably want something under 3 seconds.
As for methods, my team uses a method which allows us a 8"x21" margin of error. We can climb even if the drivers can’t see the robot - they simply need to see the rope twitch. It is very likely (though scary to test, therefore we haven’t) that we can drive into the rope at full speed and successfully climb without stopping. Our speed gives us an average of about 4.5 seconds from the first touch. To go faster, we simply change the MiniCIMs to 775PROs and change 1 sprocket.
We’re not competing until week 4, but I marked yes. We fully anticipate bagging a robot with a working climber, including parts to engage the touchpad. We should have it working tonight, and will add sensors to auto-stop the climb on Thursday.
Why isn’t there a “Possibly” option 
Keep in mind that this is CD. CD is generally populated by the top ~20% of most dedicated teams. Just because everyone on CD is climbing, does not mean everyone at a regional or district event will climb. The only way to get a good idea of how many at a regional or district will be able to climb is to ask them directly, which likely isn’t possible.
Whether or not most teams will be able to climb is still largely unknown at this point.
Fixed that for you 
“Can you climb?”
“Yes”
:looks at scouting data that says they didn’t complete a single climb:
Rope climbing: The single most over-engineered challenge in STEAMWORKS.
It is actually not a bad idea to bring some extra climbing mechanisms in case you end up on an alliance where someone can’t climb. Adds new meaning to the notion of “carrying” your alliance partners.
Lol “lifting them up” “bringing them up to your level”
Very true.
After finding they did not complete a single climb; storms away and throws all scouting data out and restarts.