Like DMR said, if you're going to bulk do it clean. My buddy is currently toward the end-phase of his bulk and he didn't listen to me, he's just been eating pizza and whatever the fuck he wants. He still looks like a lanky fuck, hasn't gone up much in his lifts, and honestly looks like he's developing a gut. So, his "bulk" did nothing for him.
You have to do it smart. Do it clean, and don't forget to push your lifts harder than ever or else it'll all be for nothing. So many people just do the same shit they did in summer/fall, except now they're eating a lot. Then they wonder why they're at the same bench weight for 3 months, lol.
As for actual thoughts on bulking, I don't believe in it. For bodybuilders it's definitely required, but if you're after strength, you should only be looking after what you need. If you need more carbs in your diet, you do that, but that wouldn't be bulking as it's not a "phase". Getting the nutrients you need without phasing is the healthier option in my opinion. If you want big arms and a 6 pack, there are also ways you can achieve that without phasing, though it's harder. Personally I'm just not fond of putting my body through overwhelming stresses like that.