I just read about Solidworks. Don’t pirate that, it still contacts home and gives them all the info it can pull from your pc: ip, your name, company info, etc. and then they send you a huge bill for the costs of 5 years or so of licensing. Also don’t have an illegal copy next to a legal one, because then the legal one will detect the illegal one and send the info. Or open projects created with pirated software with a legal version.
Of course this data snooping would be illegal in the EU, but outside that I would be careful.