Share your insights or perspective on the financial matter presented in the input.

Are there limits on frequency of withdrawal from Roth 401K?
Back in the late 80's I had a co-worked do exactly this. In those days you could only do things quarterly: change the percentage, change the investment mix, make a withdrawal.. There were no Roth 401K accounts, but contributions could be pre-tax or post-tax. Long term employees were matched 100% up to 8%, newer employees were only matched 50% up to 8% (resulting in 4% match). Every quarter this employee put in 8%, and then pulled out the previous quarters contribution. The company match continued to grow.  Was it smart? He still ended up with 8% going into the 401K. In those pre-Enron days the law allowed companies to limit the company match to 100% company stock which meant that employees retirement was at risk. Of course by the early 2000's the stock that was purchased for $6 a share was worth $80 a share... Now what about the IRS: Since I make designated Roth contributions from after-tax income, can I make tax-free withdrawals from my designated Roth account at any   time? No, the same restrictions on withdrawals that apply to pre-tax   elective contributions also apply to designated Roth contributions. If   your plan permits distributions from accounts because of hardship, you   may choose to receive a hardship distribution from your designated   Roth account. The hardship distribution will consist of a pro-rata   share of earnings and basis and the earnings portion will be included   in gross income unless you have had the designated Roth account for 5   years and are either disabled or over age 59 ½. Regarding getting just contributions: What happens if I take a distribution from my designated Roth account before the end of the 5-taxable-year period? If you take a distribution from your designated Roth account before   the end of the 5-taxable-year period, it is a nonqualified   distribution. You must include the earnings portion of the   nonqualified distribution in gross income. However, the basis (or   contributions) portion of the nonqualified distribution is not   included in gross income. The basis portion of the distribution is   determined by multiplying the amount of the nonqualified distribution   by the ratio of designated Roth contributions to the total designated   Roth account balance. For example, if a nonqualified distribution of   $5,000 is made from your designated Roth account when the account   consists of $9,400 of designated Roth contributions and $600 of   earnings, the distribution consists of $4,700 of designated Roth   contributions (that are not includible in your gross income) and $300   of earnings (that are includible in your gross income). See Q&As regarding Rollovers of Designated Roth Contributions, for   additional rules for rolling over both qualified and nonqualified   distributions from designated Roth accounts.