The op was not about employed guys doing legit work in their own time. It was about the other 80% of employed guys doing homers, foreigners call them what you like. Most have done it at some point. Whatever view you take on it is up to you. It will never be stopped.
It doesn't bother me. What bothers me more is legit guys doing jobs for stupid money. Went into price a job last night. Boikler swap, Profile fitted in cupboard at back door being swapped for a combi. Hot cold and condensate 3m away, gas upgrade back to meter approx 6m, programmable stat, tanks out and swapped to mains.
Asked him if he had any preference on boilers and he said another guy was out the day before and he suggested a Neta tec, in fact here is his quote.........£730 plus vat ..........£836!!! From a legit firm.
"Why the fk are you wasting my time when you have someone to do it for the price of a scrap cylinder?"
That is the lowest price i have ever come across. Is this guy so desperate to pay the bills he will work for that!
Now that bothers me a lot more than some guy making a few quid on the side.