I owned two Land Cruisers when younger and never did damage that some 4x4 owners do. If the road ahead of me was blocked by water or some other obstacle and I wanted to go down the road, I went down it, but to purposely try to get stuck or damage the surrounding woods for no reason than to do just that, is irresponsible and illegal. While those who do this think they are not doing any harm, they do not have the knowledge of the possible rare plants and possibly rare creatures that they are interfering with or destroying.
In recent years I have become much more aware of what this irresponsible activity is doing to some area's due to the varied knowledge of many of the members of this site. Once one sees the full picture it is clear that it is a problem.
Guy