Permanent DST would be so stupid.
What is "noon" or "solar noon" under DST? Solar noon is supposed to be the time when the sun is at its peak. AM and PM come from ante meridiem and post meridiem, which are basically "before the sun's peak" and "after the sun's peak". But, under DST the peak is at approx 1pm. So, will saying "I'll meet you at noon" still mean 12pm? Probably, but then "solar noon" will be 1pm but "noon" will be 12am?
If the whole reason behind considering permanent DST that they think the 9-5 schedule of office life is impossible to change? This just reminds me of bad software projects where office politics and middle manager interference meant that rather than fixing the root cause, it was easier just to add tech debt.