I assume your question is to everyone and not any specific poster.

I like hostels, you can be as social or as anti-social as you want. Last summer I met a gal that was also starting a bike tour at the same time and hostel that I was starting out from, we rode together for a day and a half. I have met a lot of interesting people at hostels.

If I fly somewhere and stay at a hostel at the start and end of a trip, I will schedule those months in advance with reservations, but otherwise I often stay at a hostel on a spur of the moment basis instead of camping. I have also finished tours at a hostel where my end-date was more flexible because I was taking a train, not flying. In those cases I will make a reservation a few days in advance.

I have not stayed at Warmshowers or Couchsurfed, but have no plans to do so. I would rather not arrive there and find that I do not hit it off with the host. I would rather stay at a Motel 6 than do that. But, I am well aware that a lot of people use those services frequently and enjoy them.