@Ashley2
No, these are not the kinds of things we as hosts would expect any guest to do, or which we should just have to sit back and endure politely. THese are all indications of a thoughtless or inconsiderate guest, a disrespectful guest. They violated house rules, and damaged your property. When doing a review of any guest, it is helpful to think -- wouldn't you like to have been warned about these guests, by a previous host that they had stayed with? Your review of these guests is your opportunity to warn future hosts about what they are like, so that future hosts have the opportunity to make an informed decision about whether to accept these individuals. It is irresponsible (both to the host, and to the environment, in terms of the waste of energy/natural resources) to set a thermostat at 80 degrees at any time, let alone leave it that way after leaving a place. Guests should not expect that hosts would permit their home to be used as a sauna.
Your review might go something like this, "Jenny and Jim were pleasant people and communicated well, but did not show adequate respect for our property. Candle wax was was spilled on the floor and not removed, a large section of paint was damaged on another floor, and the thermostat was left at 80 degrees upon departure. We hope that Jenny and Jim would be more considerate in the future when staying in other's homes." Sometimes hosts will also add, "I would not recommend Jenny and Jim to other hosts" or "Jenny and Jim are more suited to stay in a hotel", if that is how they feel.
IN other words, do express the ways that they were good guests, but also make sure to briefly discuss the problems you had. Reviews are best when they are concise, you use a calm, neutral, professional tone, and stay focused on the facts.
I suggest you (and all hosts) have a house rule prohibiting use of candles -- particularly if guests are simply setting candles right onto the floor, this could result in a fire and a tragic loss of your home.
